{"id":39783,"date":"2022-11-06T22:32:00","date_gmt":"2023-02-07T19:12:38","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%a6%96%e5%85%88%ef%bc%8c%e5%ad%a6%e4%bb%a5%e8%87%b4%e7%94%a8%ef%bc%8c%e5%ad%a6%e4%b9%a0spring-boot-batch%e7%9a%84%e8%bf%90%e8%a1%8c%e6%96%b9%e6%b3%95%e3%80%82\/"},"modified":"2024-04-28T23:23:21","modified_gmt":"2024-04-28T15:23:21","slug":"%e9%a6%96%e5%85%88%ef%bc%8c%e5%ad%a6%e4%bb%a5%e8%87%b4%e7%94%a8%ef%bc%8c%e5%ad%a6%e4%b9%a0spring-boot-batch%e7%9a%84%e8%bf%90%e8%a1%8c%e6%96%b9%e6%b3%95%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%a6%96%e5%85%88%ef%bc%8c%e5%ad%a6%e4%bb%a5%e8%87%b4%e7%94%a8%ef%bc%8c%e5%ad%a6%e4%b9%a0spring-boot-batch%e7%9a%84%e8%bf%90%e8%a1%8c%e6%96%b9%e6%b3%95%e3%80%82\/","title":{"rendered":"\u9996\u5148\uff0c\u5b66\u4ee5\u81f4\u7528\uff0c\u5b66\u4e60Spring Boot Batch\u7684\u8fd0\u884c\u65b9\u6cd5"},"content":{"rendered":"<h1>\u203b\u6ce8\u610f\uff082023\/05\/13\u66f4\u65b0\uff09<\/h1>\n<p>\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\u4ee5\u83b7\u53d6\u6700\u65b0\u7684\u4fe1\u606f\uff0cSpring Boot 3.0\u5df2\u7ecf\u53d1\u5e03\u5e76\u4e14Spring Batch\u4e5f\u5347\u7ea7\u81f35.0\u7248\u672c\u3002<\/p>\n<h1>\u9996\u5148<\/h1>\n<p>Spring Batch\u662f\u4e00\u4e2a\u53ef\u4ee5\u5728Spring\u4e0a\u6784\u5efa\u6279\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u6846\u67b6\u3002\u5b66\u4e60Spring Batch\u6d89\u53ca\u5230\u8bb8\u591a\u89d2\u8272\u548c\u4e00\u4e9b\u590d\u6742\u7684\u6982\u5ff5\u3002\u5f53\u7136\uff0c\u5b66\u4e60\u8fd9\u4e9b\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u4f46\u9996\u5148\u6211\u4eec\u60f3\u8981\u5c1d\u8bd5\u8fd0\u884c\u8d77\u6765\uff01\u56e0\u6b64\uff0c\u672c\u6587\u5c06\u91cd\u70b9\u653e\u5728\u4f7f\u7528Spring Boot\u6765\u8fd0\u884cSpring Batch\u7684\u5fc5\u8981\u6b65\u9aa4\u4e0a\u3002<br \/>\n\u6211\u4eec\u5c06\u5c3d\u91cf\u51cf\u5c11\u6982\u5ff5\u7684\u89e3\u91ca\uff0c\u66f4\u52a0\u6ce8\u91cd\u5b9e\u8df5\uff0c\u76ee\u6807\u662f\u5148\u611f\u53d7\u4e00\u4e0bSpring Batch\u662f\u5982\u4f55\u8fd0\u4f5c\u7684\uff0c\u800c\u4e0d\u662f\u53ea\u5173\u6ce8\u7406\u8bba\u3002<\/p>\n<h1>\u672c\u6587\u7684\u76ee\u6807\u662f\u4ec0\u4e48\uff1f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Spring Boot\u3067Spring Batch\u3092\u3069\u306e\u3088\u3046\u306b\u66f8\u3051\u3070\u3044\u3044\u304b\u5206\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Spring Batch\u306e\u5168\u4f53\u50cf\u304c\u306a\u3093\u3068\u306a\u304f\u5206\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7c21\u5358\u306aJob, Step\u3092\u8a18\u8ff0\u3067\u304d\u308b\uff08\u4eca\u56de\u306fTasklet\u30e2\u30c7\u30eb\u3092\u7d39\u4ecb\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5fc5\u8981\u306a\u6700\u4f4e\u9650\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3001Java Config\u306e\u8a18\u8ff0\u304c\u5206\u304b\u308b<\/ul>\n<h1>Spring Batch\u7684\u6982\u5ff5<\/h1>\n<p>\u9019\u88e1\u4ecb\u7d39\u61c9\u8a72\u9996\u5148\u4e86\u89e3\u7684\u57fa\u672c\u6982\u5ff5\u3002<br \/>\n\u66f4\u591a\u8a73\u7d30\u5167\u5bb9\u8acb\u53c3\u95b1\u5b98\u65b9\u53c3\u8003\u8cc7\u6599\u3002<\/p>\n<h2>\u6574\u4f53\u7684\u5f62\u8c61\u3002<\/h2>\n<p>\u8fd9\u662fSpring Batch\u7684\u6574\u4f53\u67b6\u6784\u3002\u53ea\u8981\u8bb0\u6e05\u695a\u8fd9\u4e2a\u5373\u53ef\u3002<br \/>\n\u8fd9\u91cc\u5c06\u5bf9\u4ee5\u4e0b\u5173\u952e\u8bcd\u8fdb\u884c\u89e3\u91ca\u8bf4\u660e\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">JobLauncher<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Job<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">JobParameter<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Step<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">JobRepository<\/ul>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3cbf37434c4406c859b9\/11-0.png\" alt=\"image.png\" \/><\/div>\n<h2>\u5c31\u4e1a\u542f\u52a8\u5668<\/h2>\n<p>\u8fd9\u662f\u4e00\u4e2a\u4f5c\u4e3a\u6267\u884cJob\u7684\u5165\u53e3\u70b9\u7684\u63a5\u53e3\u3002\u901a\u8fc7\u8c03\u7528run\u65b9\u6cd5\u6765\u6267\u884cJob\u3002run\u65b9\u6cd5\u63a5\u6536\u8981\u6267\u884c\u7684Job\u548cJobParameter\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">interface<\/span> <span class=\"nc\">JobLauncher<\/span> <span class=\"o\">{<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"nc\">JobExecution<\/span> <span class=\"nf\">run<\/span><span class=\"o\">(<\/span><span class=\"nc\">Job<\/span> <span class=\"n\">job<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobParameters<\/span> <span class=\"n\">jobParameters<\/span><span class=\"o\">)<\/span>\r\n            <span class=\"kd\">throws<\/span> <span class=\"nc\">JobExecutionAlreadyRunningException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobRestartException<\/span><span class=\"o\">,<\/span>\r\n                   <span class=\"nc\">JobInstanceAlreadyCompleteException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobParametersInvalidException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5de5\u4f5c<\/h2>\n<p>Spring Batch\u662f\u4e00\u4e2a\u57fa\u672c\u5143\u7d20\uff0c\u7528\u4e8e\u8868\u793a\u6574\u4e2a\u6279\u5904\u7406\u8fc7\u7a0b\u3002\u53ef\u4ee5\u5c061\u4e2aJob\u89c6\u4e3a1\u4e2a\u6279\u5904\u7406\u3002\u4e00\u4e2aJob\u7531\u591a\u4e2aStep\u7ec4\u6210\uff0c\u6267\u884c\u4e00\u4e2aJob\u65f6\uff0c\u5c06\u6267\u884c\u6784\u6210\u8be5Job\u7684\u591a\u4e2aStep\u3002<\/p>\n<h2>\u5de5\u4f5c\u53c2\u6570<\/h2>\n<p>\u53ef\u4ee5\u5728\u4f5c\u4e1a\u6267\u884c\u65f6\u4f20\u9012\u7684\u53c2\u6570\u3002\u8fd9\u4e9b\u53c2\u6570\u53ef\u4ee5\u4f5c\u4e3a\u4f5c\u4e1a\u6216\u6b65\u9aa4\u7684\u53d8\u91cf\u4f7f\u7528\u3002<\/p>\n<h2>\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879<\/h2>\n<p>\u6b65\u9aa4<\/p>\n<p>Step\u662f\u7ec4\u6210\u6279\u5904\u7406\u7684\u6700\u5c0f\u5355\u4f4d\u3002Step\u53ef\u5206\u4e3a\u4e24\u79cd\u4e3b\u8981\u6a21\u578b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Chunk\u30e2\u30c7\u30eb<\/ul>\n<\/li>\n<\/ul>\n<p>\u8aad\u307f\u8fbc\u307f(ItemReader)\u3001\u52a0\u5de5(ItemProcessor)\u3001\u66f8\u304d\u8fbc\u307f(ItemWriter)\u306b\u3088\u3063\u3066\u69cb\u6210\u3055\u308c\u308b\u30b9\u30c6\u30c3\u30d7\u30e2\u30c7\u30eb\u3002\u8aad\u307f\u8fbc\u307f\u3001\u52a0\u5de5\u3001\u66f8\u304d\u8fbc\u307f\u306e\u9806\u3067Step\u304c\u69cb\u6210\u3055\u308c\u3001\u5fc5\u305a\u305d\u308c\u305e\u308c\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\uff08\u4f8b\u3048\u3070\u8aad\u307f\u8fbc\u307f\u3001\u52a0\u5de5\u3060\u3051\u3092\u884c\u3046\u3088\u3046\u306aStep\u306b\u306f\u3067\u304d\u307e\u305b\u3093\uff09\u3002\u5b9f\u88c5\u8005\u306f\u305d\u308c\u305e\u308c\u306e\u51e6\u7406\u5185\u5bb9\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e88\u3081Spring Batch\u5074\u3067\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u5b9f\u88c5\u8005\u306f\u305d\u308c\u3092\u5b9f\u88c5\u3057\u3066\u305d\u308c\u305e\u308c\u306e\u51e6\u7406\u5185\u5bb9\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>Tasklet\u30e2\u30c7\u30eb<\/p>\n<p>Chunk\u30e2\u30c7\u30eb\u3068\u306f\u9055\u3044\u3001\u7279\u306b\u51e6\u7406\u306e\u6d41\u308c\u304c\u6c7a\u307e\u3063\u3066\u304a\u3089\u305a\u3001\u81ea\u7531\u306b\u51e6\u7406\u3092\u8a18\u8ff0\u3067\u304d\u308b\u30b9\u30c6\u30c3\u30d7\u30e2\u30c7\u30eb\u3002\u4f55\u304b\u5358\u4e00\u51e6\u7406\u3092\u884c\u3046\u5834\u5408\u306f\u3053\u3061\u3089\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u3053\u3061\u3089\u3082Spring Batch\u5074\u3067\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u5b9f\u88c5\u8005\u306f\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u51e6\u7406\u5185\u5bb9\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u804c\u4f4d\u5b58\u50a8\u5e93<\/h2>\n<p>\u5c06Job\u6216Step\u7684\u6267\u884c\u72b6\u6001\u548c\u6267\u884c\u7ed3\u679c\u4fdd\u5b58\u5728\u4e00\u4e2a\u5730\u65b9\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4f1a\u4f7f\u7528RDB\u7b49\u5b58\u50a8\u4ecb\u8d28\u8fdb\u884c\u6301\u4e45\u5316\u3002<\/p>\n<h1>\u672c\u6587\u4ecb\u7ecd\u7684\u6279\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5bb9<\/h1>\n<p>\u672c\u6b21\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u6279\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\uff0c\u5f53\u542f\u52a8Spring Boot\u65f6\uff0c\u5b83\u5c06\u663e\u793a\u201cHello, World!\u201d\u3002\u8bf7\u5728GitHub\u4e0a\u67e5\u770b\u6e90\u4ee3\u7801\u3002<\/p>\n<h1>\u524d\u63d0\u662f\u53ea\u9700\u8981\u4e00\u79cd\u9009\u62e9<\/h1>\n<p>\u8fd9\u4e2a\u4ee3\u7801\u5728\u4ee5\u4e0b\u7248\u672c\u4e2d\u5df2\u7ecf\u8fc7\u6d4b\u8bd5\u9a8c\u8bc1\u3002<\/p>\n<div>\n<div class=\"post-table\">\u30e9\u30a4\u30d6\u30e9\u30ea\u30d0\u30fc\u30b8\u30e7\u30f3Spring Boot2.2.5.RELEASEJava11maven3.5.3<\/div>\n<\/div>\n<p>\u53e6\u5916\uff0c\u5728Spring Batch\u4e2d\u7684\u914d\u7f6e\u4e0d\u662f\u4f7f\u7528XML\uff0c\u800c\u662f\u4f7f\u7528Java Config\u6765\u7f16\u5199\u3002<\/p>\n<h1>\u8fdb\u884c\u5b9e\u9645\u64cd\u4f5c\u8bd5\u8bd5\u770b<\/h1>\n<p>\u4e0b\u9762\u5c06\u8bb0\u5f55\u4f7f\u7528Spring Boot\u8fd0\u884cSpring Batch\u6240\u9700\u8981\u505a\u7684\u4e8b\u60c5\u3002<\/p>\n<h2>\u5f15\u5165\u56fe\u4e66\u9986<\/h2>\n<p>\u6211\u4f1a\u5f15\u5165\u4f4e\u4e8e\u6700\u4f4e\u8981\u6c42\u7684\u5e93\u3002<\/p>\n<div>\n<div class=\"post-table\">\u30e9\u30a4\u30d6\u30e9\u30ea\u5185\u5bb9spring-boot-starter-batchSpring Batch\u3092Spring Boot\u3067\u5229\u7528\u3059\u308b\u305f\u3081\u306estarter\u30e9\u30a4\u30d6\u30e9\u30eah2\u7d44\u307f\u8fbc\u307fDB<br \/>\nJobRepository\u3092\u683c\u7d0d\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981<\/div>\n<\/div>\n<pre class=\"post-pre\"><code>...\r\n    <span class=\"nt\">&lt;dependencies&gt;<\/span>\r\n        <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n            <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.boot<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n            <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-boot-starter-batch<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n        <span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n        <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n            <span class=\"nt\">&lt;groupId&gt;<\/span>com.h2database<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n            <span class=\"nt\">&lt;artifactId&gt;<\/span>h2<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n        <span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n        ...\r\n    <span class=\"nt\">&lt;\/dependencies&gt;<\/span>\r\n...\r\n<\/code><\/pre>\n<h2>Tasklet\u7684\u5b9e\u73b0<\/h2>\n<p>\u9996\u5148\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u4f5c\u4e3aStep\u5b9e\u9645\u5904\u7406\u7684Tasklet\u3002\uff08\u7531\u4e8e\u672c\u6b21\u6ca1\u6709\u5199\u5165\u64cd\u4f5c\uff0c\u6240\u4ee5\u91c7\u7528\u4e86Tasklet\u6a21\u578b\uff09<br \/>\n\u4ee5\u4e0b\u662f\u7528\u4e8e\u663e\u793a&#8221;Hello, World!&#8221;\u7684Tasklet\u3002<br \/>\n\u6211\u4eec\u8981\u5b9e\u73b0Tasklet\u63a5\u53e3\u5e76\u7f16\u5199execute\u65b9\u6cd5\u3002<br \/>\nexecute\u65b9\u6cd5\u9700\u8981\u8fd4\u56deRepeatStatus\u7c7b\u578b\u7684\u8fd4\u56de\u503c\u3002<br \/>\nRepeatStatus\u662f\u4e00\u4e2a\u679a\u4e3e\u7c7b\u578b\uff0c\u5177\u6709RepeatStatus.FINISHED\u548cRepeatStatus.CONTINUABLE\u4e24\u4e2a\u503c\u3002<br \/>\n\u8bf7\u6ce8\u610f\uff0c\u8fd4\u56de\u503c\u4f1a\u5bfc\u81f4\u4e0d\u540c\u7684\u884c\u4e3a\u3002<\/p>\n<div>\n<div class=\"post-table\">RepeatStatus\u8fd4\u308a\u5024\u306b\u3057\u305f\u5834\u5408\u306e\u6319\u52d5FINISHED\u305d\u308c\u4ee5\u4e0a\u51e6\u7406\u304c\u7d9a\u304b\u305a\u7d42\u4e86\u3059\u308b\u3002<br \/>\nnull\u3092\u8fd4\u3057\u305f\u5834\u5408\u3082FINISHED\u3068\u540c\u69d8\u306e\u6319\u52d5\u306b\u306a\u308b\u3002CONTINUABLETasklet\u304c\u7d99\u7d9a\u3057\u3066\u547c\u3070\u308c\u308b\u3002<br \/>\nFINISHED\u3092\u8fd4\u3055\u306a\u3044\u9650\u308a\u306f\u51e6\u7406\u304c\u7d99\u7d9a\u3059\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3002<\/div>\n<\/div>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span>\r\n<span class=\"nd\">@StepScope<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">HelloWorldTasklet<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">Tasklet<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Override<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">RepeatStatus<\/span> <span class=\"nf\">execute<\/span><span class=\"o\">(<\/span><span class=\"nc\">StepContribution<\/span> <span class=\"n\">contribution<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ChunkContext<\/span> <span class=\"n\">chunkContext<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Hello, World!\"<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">RepeatStatus<\/span><span class=\"o\">.<\/span><span class=\"na\">FINISHED<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5de5\u4f5c\u6216\u6b65\u9aa4\u7684\u5b9a\u4e49<\/h2>\n<p>\u5728Java Config\u4e2d\uff0c\u6211\u4eec\u4e3b\u8981\u4f7f\u7528Bean\u5b9a\u4e49\u6765\u63cf\u8ff0Job\u6216Step\u7684\u8bbe\u7f6e\u3002<br \/>\n\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u8fd8\u9700\u8981\u5b9a\u4e49\u4e00\u4e9bBean\u5982JobRepository\u548cJobLauncher\uff0c\u4f46\u662f\u5728Spring Batch\u4e2d\uff0c\u6709\u4e00\u4e2a\u540d\u4e3a@EnableBatchProcessing\u7684\u6ce8\u89e3\uff0c\u5f53\u6211\u4eec\u6dfb\u52a0\u8be5\u6ce8\u89e3\u65f6\uff0c\u5b83\u4f1a\u81ea\u52a8\u4e3a\u6211\u4eec\u8fdb\u884c\u8bbe\u7f6e\uff0c\u800c\u4e0d\u9700\u8981\u660e\u786e\u5730\u5b9a\u4e49\u5b83\u4eec\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@EnableBatchProcessing<\/span>\r\n<span class=\"nd\">@Configuration<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">BatchConfig<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"kd\">final<\/span> <span class=\"nc\">JobBuilderFactory<\/span> <span class=\"n\">jobBuilderFactory<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"kd\">final<\/span> <span class=\"nc\">StepBuilderFactory<\/span> <span class=\"n\">stepBuilderFactory<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"kd\">final<\/span> <span class=\"nc\">HelloWorldTasklet<\/span> <span class=\"n\">helloWorldTasklet<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nf\">BatchConfig<\/span><span class=\"o\">(<\/span><span class=\"nc\">JobBuilderFactory<\/span> <span class=\"n\">jobBuilderFactory<\/span><span class=\"o\">,<\/span>\r\n                       <span class=\"nc\">StepBuilderFactory<\/span> <span class=\"n\">stepBuilderFactory<\/span><span class=\"o\">,<\/span>\r\n                       <span class=\"nc\">HelloWorldTasklet<\/span> <span class=\"n\">helloWorldTasklet<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobBuilderFactory<\/span> <span class=\"o\">=<\/span> <span class=\"n\">jobBuilderFactory<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">stepBuilderFactory<\/span> <span class=\"o\">=<\/span> <span class=\"n\">stepBuilderFactory<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">helloWorldTasklet<\/span> <span class=\"o\">=<\/span> <span class=\"n\">helloWorldTasklet<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Bean<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">Job<\/span> <span class=\"nf\">helloWorldJob<\/span><span class=\"o\">(<\/span><span class=\"nc\">Step<\/span> <span class=\"n\">helloWorldStep<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">jobBuilderFactory<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"s\">\"helloWorldJob\"<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/Job\u540d\u3092\u6307\u5b9a<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">flow<\/span><span class=\"o\">(<\/span><span class=\"n\">helloWorldStep<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/\u5b9f\u884c\u3059\u308bStep\u3092\u6307\u5b9a<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">end<\/span><span class=\"o\">()<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">build<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Bean<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">Step<\/span> <span class=\"nf\">helloWorldStep<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">stepBuilderFactory<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"s\">\"helloWorldStep\"<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/Step\u540d\u3092\u6307\u5b9a<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">tasklet<\/span><span class=\"o\">(<\/span><span class=\"n\">helloWorldTasklet<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/\u5b9f\u884c\u3059\u308bTasklet\u3092\u6307\u5b9a<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">build<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u5bf9\u4e0a\u8ff0\u4ee3\u7801\u8fdb\u884c\u4e00\u4e9b\u89e3\u91ca\u3002<br \/>\n\u9996\u5148\uff0c\u662f\u5173\u4e8eJob\u7684\u90e8\u5206\u3002\u5728jobBuilderFactory.get()\u65b9\u6cd5\u7684\u53c2\u6570\u4e2d\u6307\u5b9a\u4e86\u4e00\u4e2aJob\u540d\u79f0\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2a\u540d\u4e3a&#8221;helloWorldJob&#8221;\u7684\u540d\u79f0\u3002\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528.flow()\u65b9\u6cd5\u6307\u5b9a\u4e86\u5728\u6b64Job\u4e2d\u8981\u6267\u884c\u7684Step\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u662fStep\u3002\u4e0eJob\u7684\u6784\u6210\u76f8\u4f3c\uff0c\u9996\u5148\u9700\u8981\u5728stepBuilderFactory.get()\u65b9\u6cd5\u7684\u53c2\u6570\u4e2d\u6307\u5b9aStep\u7684\u540d\u79f0\u3002\u8fd9\u91cc\u6211\u4eec\u6307\u5b9a\u4e86\u540d\u79f0\u4e3a&#8221;helloWorldStep&#8221;\u3002\u7136\u540e\u4f7f\u7528tasklet()\u65b9\u6cd5\u6307\u5b9a\u8981\u6267\u884c\u7684Tasklet\u3002<\/p>\n<h2>\u6570\u636e\u6e90\u7684\u8bbe\u7f6e<\/h2>\n<p>\u672c\u6b21\u6211\u4eec\u5c06\u4f7f\u7528H2\u4f5c\u4e3aJobRepository\u7684\u5b58\u50a8\u4f4d\u7f6e\uff0c\u56e0\u6b64\u9700\u8981\u7f16\u5199\u76f8\u5e94\u7684DataSource\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">spring<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">datasource<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">url<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">jdbc:h2:mem:test\"<\/span>\r\n    <span class=\"na\">username<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sa<\/span>\r\n    <span class=\"na\">password<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">driver-class-name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.h2.Driver<\/span>\r\n<\/code><\/pre>\n<h2>\u5b9e\u73b0SpringBootApplication<\/h2>\n<p>\u8fd9\u4e0e\u4e00\u822c\u7684Spring Boot\u542f\u52a8\u7c7b\u6ca1\u6709\u4efb\u4f55\u533a\u522b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@SpringBootApplication<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">SampleSpringBatchApplication<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">SpringApplication<\/span><span class=\"o\">.<\/span><span class=\"na\">run<\/span><span class=\"o\">(<\/span><span class=\"nc\">SampleSpringBatchApplication<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">,<\/span> <span class=\"n\">args<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u662f\u8a2d\u5b9a\u5b8c\u6210\uff01<\/p>\n<h2>\u542f\u52a8<\/h2>\n<p>\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff0c\u4ee5\u4e0b\u662f\u4e2d\u6587\u7684\u7ffb\u8bd1\uff1a<\/p>\n<p>\u53ea\u9700\u8981\u7f16\u8bd1\u5e76\u542f\u52a8\uff0c\u6279\u5904\u7406\u5c06\u88ab\u6267\u884c\u3002<br \/>\n\u5728Spring Boot\u4e2d\uff0c\u6240\u6709\u5df2\u5b9a\u4e49\u7684Bean\u4f5c\u4e1a\u9ed8\u8ba4\u4f1a\u88ab\u6267\u884c\uff0c\u56e0\u6b64\u65e0\u9700\u7279\u522b\u8bbe\u7f6e\uff0c\u5728\u542f\u52a8\u65f6\u4f5c\u4e1a\u4f1a\u88ab\u6267\u884c\u3002<br \/>\n\u4e0b\u9762\u662f\u542f\u52a8\u65e5\u5fd7\uff0c\u53ef\u4ee5\u770b\u5230\u5df2\u5b9a\u4e49\u7684helloWorldJob\u6b63\u5728\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>$ .\/mvnw spring-boot:run\r\n\r\n...(\u7701\u7565)...\r\n\r\n  .   ____          _            __ _ _\r\n \/\\\\ \/ ___'_ __ _ _(_)_ __  __ _ \\ \\ \\ \\\r\n( ( )\\___ | '_ | '_| | '_ \\\/ _` | \\ \\ \\ \\\r\n \\\\\/  ___)| |_)| | | | | || (_| |  ) ) ) )\r\n  '  |____| .__|_| |_|_| |_\\__, | \/ \/ \/ \/\r\n =========|_|==============|___\/=\/_\/_\/_\/\r\n :: Spring Boot ::        (v2.2.5.RELEASE)\r\n\r\n...(\u7701\u7565)...\r\n\r\n2020-03-24 23:12:36.494  INFO 76528 --- [           main] c.k.s.SampleSpringBatchApplication       : Started SampleSpringBatchApplication in 2.261 seconds (JVM running for 2.83)\r\n2020-03-24 23:12:36.496  INFO 76528 --- [           main] o.s.b.a.b.JobLauncherCommandLineRunner   : Running default command line with: []\r\n2020-03-24 23:12:36.568  INFO 76528 --- [           main] o.s.b.c.l.support.SimpleJobLauncher      : Job: [FlowJob: [name=helloWorldJob]] launched with the following parameters: [{}]\r\n2020-03-24 23:12:36.638  INFO 76528 --- [           main] o.s.batch.core.job.SimpleStepHandler     : Executing step: [helloWorldStep]\r\nHello, World!\r\n2020-03-24 23:12:36.672  INFO 76528 --- [           main] o.s.batch.core.step.AbstractStep         : Step: [helloWorldStep] executed in 34ms\r\n2020-03-24 23:12:36.678  INFO 76528 --- [           main] o.s.b.c.l.support.SimpleJobLauncher      : Job: [FlowJob: [name=helloWorldJob]] completed with the following parameters: [{}] and the following status: [COMPLETED] in 63ms\r\n\r\n...(\u7701\u7565)...\r\n<\/code><\/pre>\n<h1>\u603b\u7ed3<\/h1>\n<p>\u6211\u5df2\u7ecf\u89e3\u91ca\u4e86\u6700\u4f4e\u9650\u5ea6\u6267\u884cSpring Boot\u4e2d\u4f7f\u7528Spring Batch\u7684\u6b65\u9aa4\u3002\u6700\u540e\uff0c\u6211\u5c06\u5217\u51fa\u6211\u4eec\u6240\u505a\u7684\u5fc5\u8981\u4e8b\u9879\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">spring-boot-starter-batch\u306e\u8ffd\u52a0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">DB\u306e\u7528\u610f\u3001DataSource\u306e\u8a2d\u5b9a<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Job\u3084Step\u306a\u3069\u306e\u8a2d\u5b9a\uff08Java Config\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Step\u51e6\u7406\u306e\u8a18\u8ff0\uff08\u4eca\u56de\u306fTasklet\u306e\u8a18\u8ff0\uff09<\/ul>\n<p>\u6211\u8fd9\u6b21\u5728\u89e3\u91ca\u4e2d\u7701\u7565\u4e86\u5176\u4ed6\u6982\u5ff5\u548c\u8be6\u7ec6\u6267\u884c\u673a\u5236\u7684\u90e8\u5206\uff0c\u6253\u7b97\u5728\u4ee5\u540e\u7684\u67d0\u4e2a\u65f6\u5019\u518d\u5199\u4e00\u7bc7\u6587\u7ae0\u6765\u89e3\u91ca\u3002<\/p>\n<h1>\u88dc\u5145<\/h1>\n<p>\u6211\u5c06\u5728\u4e0b\u9762\u8865\u5145\u4e00\u4e9b\u5173\u4e8e\u4e0a\u9762\u6ca1\u6709\u63d0\u5230\u7684\u5185\u5bb9\u7684\u89e3\u91ca\u3002<\/p>\n<h2>\u5173\u4e8e@StepScope<\/h2>\n<p>\u6211\u5011\u5728\u9019\u6b21\u5be6\u73fe\u7684 HelloWorldTasklet \u985e\u4e2d\u52a0\u4e0a\u4e86 @StepScope \u9019\u500b\u8a3b\u91cb\u3002<br \/>\n\u9019\u500b\u8a3b\u91cb\u7528\u65bc\u5b9a\u7fa9 Bean \u7684\u751f\u6210\u7bc4\u570d\uff0cStep Scope \u662f\u78ba\u4fdd\u5728\u540c\u4e00\u500b Step \u4e2d\u53ea\u4f7f\u7528\u540c\u4e00\u500b\u5be6\u4f8b\u7684\u7bc4\u570d\u3002\u5982\u679c Step \u6539\u8b8a\uff0c\u5be6\u4f8b\u6703\u88ab\u91cd\u65b0\u751f\u6210\u3002\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0c\u662f\u55ae\u4f8b\u7bc4\u570d\uff0c\u6240\u4ee5\u5728 Tasklet \u4e2d\u5982\u679c\u6709\u72c0\u614b\u7684\u8a71\uff0c\u5b58\u5728\u88ab\u50b3\u905e\u5230\u5176\u4ed6 Step \u7684\u98a8\u96aa\u3002\u5982\u679c\u6c92\u6709\u554f\u984c\u7684\u8a71\uff0c\u90a3\u5c31\u6c92\u554f\u984c\uff0c\u4f46\u5982\u679c\u6709\u554f\u984c\u7684\u8a71\uff0c\u6211\u8a8d\u70ba\u6700\u597d\u8a2d\u7f6e\u70ba Step Scope\u3002<br \/>\nStep Scope \u53ea\u80fd\u5728 Spring Batch \u4e2d\u4f7f\u7528\u3002<\/p>\n<h2>\u5982\u679c\u8981\u7528Chunk\u6a21\u578b\u6784\u5efaStep\uff0cStep\u7684\u5b9a\u4e49\u65b9\u5f0f\u662f\u600e\u6837\u7684<\/h2>\n<p>\u6211\u8ba1\u5212\u5728\u53e6\u4e00\u7bc7\u6587\u7ae0\u4e2d\u63d0\u53ca\u8fd9\u4e2a\u5730\u65b9\u3002<\/p>\n<h2>\u53ea\u9700\u8981\u63d0\u4f9b\u4e00\u79cd\u9009\u62e9:<\/h2>\n<p>\u5f53\u5b9a\u4e49\u4e86\u591a\u4e2aJob\u65f6\uff0c\u5982\u4f55\u9650\u5236\u5728\u542f\u52a8\u65f6\u6267\u884c\u7684Job\u3002<\/p>\n<p>\u5f53\u4f7f\u7528Spring Boot\u542f\u52a8Spring Batch\u65f6\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4f1a\u6267\u884c\u6240\u5b9a\u4e49\u7684\u6240\u6709\u4f5c\u4e1a\uff0c\u4f46\u6709\u65f6\u53ef\u80fd\u5e0c\u671b\u9650\u5236\u53ea\u6267\u884c\u7279\u5b9a\u7684\u4f5c\u4e1a\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9aspring.batch.job.names\u5c5e\u6027\u6765\u9650\u5236\u8981\u6267\u884c\u7684\u4f5c\u4e1a\u3002\u5982\u679c\u60f3\u6307\u5b9a\u591a\u4e2a\u4f5c\u4e1a\uff0c\u53ef\u4ee5\u4f7f\u7528\u9017\u53f7\u8fdb\u884c\u5206\u5272\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">spring<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">batch<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">job<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">names<\/span><span class=\"pi\">:<\/span> <span class=\"s\">helloWorldJob<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u5e0c\u671b\u5728\u542f\u52a8\u65f6\u7981\u7528\u6240\u6709\u4f5c\u4e1a\u7684\u6267\u884c\uff0c\u53ef\u4ee5\u5c06spring.batch.job.enabled\u8bbe\u4e3afalse\u6765\u5b9e\u73b0\u3002\u8fd9\u5bf9\u4e8e\u5728\u901a\u8fc7@SpringBootTest\u8fdb\u884c\u6d4b\u8bd5\u65f6\u4e0d\u60f3\u8fd0\u884c\u4f5c\u4e1a\u7684\u60c5\u51b5\u975e\u5e38\u6709\u7528\u3002\u5728\u793a\u4f8b\u6d4b\u8bd5\u4e2d\uff0cspring.batch.job.enabled\u5df2\u88ab\u8bbe\u7f6e\u4e3afalse\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">spring<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">batch<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">job<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">enabled<\/span><span class=\"pi\">:<\/span> <span class=\"kc\">false<\/span>\r\n<\/code><\/pre>\n<h2>JobLauncher\u6ca1\u6709\u5728\u4ec0\u4e48\u5730\u65b9\u88ab\u8c03\u7528\uff0c\u8fd9\u4e00\u70b9\u5e76\u6ca1\u6709\u63d0\u53ca\u3002<\/h2>\n<p>\u5728\u6982\u5ff5\u89e3\u91ca\u90e8\u5206\uff0c\u6211\u4eec\u63d0\u5230\u4e86\u901a\u8fc7\u8c03\u7528JobLauncher\u7684run\u65b9\u6cd5\u6765\u6267\u884cJob\uff0c\u4f46\u5728\u793a\u4f8b\u5e94\u7528\u4e2d\u5e76\u6ca1\u6709\u7279\u522b\u8bf4\u660eJobLauncher\u7684\u8c03\u7528\u4f4d\u7f6e\u3002\u90a3\u4e48\uff0c\u5b83\u662f\u5728\u54ea\u91cc\u88ab\u8c03\u7528\u7684\u5462\uff1f<\/p>\n<p>\u7b54\u6848\u53ef\u4ee5\u5728 Spring Boot \u7684 JobLauncherCommandLineRunner \u7c7b\u4e2d\u627e\u5230\u3002\u8be5\u7c7b\u5b9e\u73b0\u4e86 CommandLineRunner \u63a5\u53e3\uff0c\u56e0\u6b64\u5728 Spring Boot \u542f\u52a8\u65f6\u4f1a\u8c03\u7528 run \u65b9\u6cd5\u3002\u901a\u8fc7\u8ffd\u8e2a run \u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u5728 execute \u65b9\u6cd5\u4e2d\u8c03\u7528\u4e86 JobLauncher \u7684 run \u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">JobLauncherCommandLineRunner<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">CommandLineRunner<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Ordered<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ApplicationEventPublisherAware<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"nd\">@Override<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">run<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">...<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">JobExecutionException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">logger<\/span><span class=\"o\">.<\/span><span class=\"na\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Running default command line with: \"<\/span> <span class=\"o\">+<\/span> <span class=\"nc\">Arrays<\/span><span class=\"o\">.<\/span><span class=\"na\">asList<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">));<\/span>\r\n        <span class=\"n\">launchJobFromProperties<\/span><span class=\"o\">(<\/span><span class=\"nc\">StringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">splitArrayElementsIntoProperties<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"=\"<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"kd\">protected<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">launchJobFromProperties<\/span><span class=\"o\">(<\/span><span class=\"nc\">Properties<\/span> <span class=\"n\">properties<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">JobExecutionException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">JobParameters<\/span> <span class=\"n\">jobParameters<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">converter<\/span><span class=\"o\">.<\/span><span class=\"na\">getJobParameters<\/span><span class=\"o\">(<\/span><span class=\"n\">properties<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">executeLocalJobs<\/span><span class=\"o\">(<\/span><span class=\"n\">jobParameters<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">executeRegisteredJobs<\/span><span class=\"o\">(<\/span><span class=\"n\">jobParameters<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"c1\">\/\/(\u7565)<\/span>\r\n\r\n    <span class=\"kd\">protected<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">execute<\/span><span class=\"o\">(<\/span><span class=\"nc\">Job<\/span> <span class=\"n\">job<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobParameters<\/span> <span class=\"n\">jobParameters<\/span><span class=\"o\">)<\/span>\r\n            <span class=\"kd\">throws<\/span> <span class=\"nc\">JobExecutionAlreadyRunningException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobRestartException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobInstanceAlreadyCompleteException<\/span><span class=\"o\">,<\/span>\r\n        <span class=\"nc\">JobParametersInvalidException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">JobParametersNotFoundException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">JobParameters<\/span> <span class=\"n\">parameters<\/span> <span class=\"o\">=<\/span> <span class=\"n\">getNextJobParameters<\/span><span class=\"o\">(<\/span><span class=\"n\">job<\/span><span class=\"o\">,<\/span> <span class=\"n\">jobParameters<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"nc\">JobExecution<\/span> <span class=\"n\">execution<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobLauncher<\/span><span class=\"o\">.<\/span><span class=\"na\">run<\/span><span class=\"o\">(<\/span><span class=\"n\">job<\/span><span class=\"o\">,<\/span> <span class=\"n\">parameters<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/Job\u306e\u5b9f\u884c\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u308b<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">publisher<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">publisher<\/span><span class=\"o\">.<\/span><span class=\"na\">publishEvent<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">JobExecutionEvent<\/span><span class=\"o\">(<\/span><span class=\"n\">execution<\/span><span class=\"o\">));<\/span>\r\n        <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728JobLauncher\u7684run\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u4ece\u54ea\u91cc\u83b7\u53d6\u4e86\u4f20\u5165\u7684Job\u53c2\u6570\uff1f\u56de\u6eaf\u4e00\u4e0b\uff0c\u6211\u4eec\u53d1\u73b0\u5728setJobs\u65b9\u6cd5\u4e2d\uff0cJob\u7684Collection\u88absetter\u6ce8\u5165\u4e86\u8fdb\u6765\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u4eec\u901a\u8fc7DI\uff08\u4f9d\u8d56\u6ce8\u5165\uff09\u6765\u83b7\u53d6Bean\u5b9a\u4e49\u7684Job\u3002<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u53e5\uff0c\u5982\u679c\u5728application.yml\u4e2d\u6307\u5b9a\u4e86spring.batch.job.names\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7\u63a2\u7d22BatchAutoConfiguration\u7c7b\u7684Bean\u65b9\u6cd5jobLauncherCommandLineRunner\u6765\u83b7\u53d6Job\u7684\u540d\u79f0\uff0c\u5728\u8be5\u65b9\u6cd5\u4e2d\u5c06\u5176\u8bbe\u7f6e\u4e3ajobLauncherCommandLineRunner\u7c7b\u7684\u5b57\u6bb5\uff0c\u5e76\u6700\u7ec8\u901a\u8fc7jobLauncherCommandLineRunner\u7c7b\u7684executeRegisteredJobs\u65b9\u6cd5\u4eceJob\u540d\u79f0\u83b7\u53d6Job\u3002<\/p>\n<pre class=\"post-pre\"><code>\t<span class=\"kd\">private<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">executeRegisteredJobs<\/span><span class=\"o\">(<\/span><span class=\"nc\">JobParameters<\/span> <span class=\"n\">jobParameters<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">JobExecutionException<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobRegistry<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nc\">StringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">hasText<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobNames<\/span><span class=\"o\">))<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t<span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">jobsToRun<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobNames<\/span><span class=\"o\">.<\/span><span class=\"na\">split<\/span><span class=\"o\">(<\/span><span class=\"s\">\",\"<\/span><span class=\"o\">);<\/span>\r\n\t\t\t<span class=\"k\">for<\/span> <span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">jobName<\/span> <span class=\"o\">:<\/span> <span class=\"n\">jobsToRun<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t\t<span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t\t\t<span class=\"nc\">Job<\/span> <span class=\"n\">job<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobRegistry<\/span><span class=\"o\">.<\/span><span class=\"na\">getJob<\/span><span class=\"o\">(<\/span><span class=\"n\">jobName<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/Job\u540d\u304b\u3089Job\u3092\u53d6\u5f97<\/span>\r\n\t\t\t\t\t<span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jobs<\/span><span class=\"o\">.<\/span><span class=\"na\">contains<\/span><span class=\"o\">(<\/span><span class=\"n\">job<\/span><span class=\"o\">))<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t\t\t\t<span class=\"k\">continue<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t\t<span class=\"o\">}<\/span>\r\n\t\t\t\t\t<span class=\"n\">execute<\/span><span class=\"o\">(<\/span><span class=\"n\">job<\/span><span class=\"o\">,<\/span> <span class=\"n\">jobParameters<\/span><span class=\"o\">);<\/span>\r\n\t\t\t\t<span class=\"o\">}<\/span>\r\n\t\t\t\t<span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">NoSuchJobException<\/span> <span class=\"n\">ex<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t\t\t<span class=\"n\">logger<\/span><span class=\"o\">.<\/span><span class=\"na\">debug<\/span><span class=\"o\">(<\/span><span class=\"nc\">LogMessage<\/span><span class=\"o\">.<\/span><span class=\"na\">format<\/span><span class=\"o\">(<\/span><span class=\"s\">\"No job found in registry for job name: %s\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">jobName<\/span><span class=\"o\">));<\/span>\r\n\t\t\t\t<span class=\"o\">}<\/span>\r\n\t\t\t<span class=\"o\">}<\/span>\r\n\t\t<span class=\"o\">}<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u81ea\u5b9a\u4e49JobLauncher\u548cJobRepository\u7684\u65b9\u6cd5<\/h2>\n<p>\u5982\u679c\u60a8\u60f3\u81ea\u5b9a\u4e49JobLauncher\u548cJobRepository\u7684\u8bbe\u7f6e\uff0c\u60a8\u53ef\u4ee5\u5b9e\u73b0BatchConfigurer\u63a5\u53e3\u8fdb\u884c\u81ea\u5b9a\u4e49\uff0c\u5e76\u5c06\u8be5\u7c7b\u8fdb\u884cBean\u5b9a\u4e49\u5373\u53ef\u3002\u7531\u4e8e\u5728\u6b64\u6211\u4eec\u4e0d\u63d0\u4f9b\u8be6\u7ec6\u8bf4\u660e\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u53c2\u8003\u6587\u6863\u3002<\/p>\n<h1>\u5f15\u7528<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Spring Batch &#8211; Reference Documentation<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/docs.spring.io\/spring-boot\/docs\/current\/reference\/html\/howto.html#howto-batch-applications<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Overview (Spring Batch 4.2.0.RELEASE API)<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u203b\u6ce8\u610f\uff082023\/05\/13\u66f4\u65b0\uff09 \u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\u4ee5\u83b7\u53d6\u6700\u65b0\u7684\u4fe1\u606f\uff0cSpring Boot 3.0\u5df2\u7ecf\u53d1\u5e03\u5e76\u4e14 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39783","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u9996\u5148\uff0c\u5b66\u4ee5\u81f4\u7528\uff0c\u5b66\u4e60Spring Boot Batch\u7684\u8fd0\u884c\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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