{"id":40409,"date":"2023-11-19T10:35:57","date_gmt":"2023-04-17T01:19:48","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/spring-batch%e7%9a%84%e4%bd%9c%e4%b8%9a%e5%90%af%e5%8a%a8%e5%8f%82%e6%95%b0\/"},"modified":"2024-01-15T10:35:49","modified_gmt":"2024-01-15T02:35:49","slug":"spring-batch%e7%9a%84%e4%bd%9c%e4%b8%9a%e5%90%af%e5%8a%a8%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/spring-batch%e7%9a%84%e4%bd%9c%e4%b8%9a%e5%90%af%e5%8a%a8%e5%8f%82%e6%95%b0\/","title":{"rendered":"Spring Batch\u7684\u4f5c\u4e1a\u542f\u52a8\u53c2\u6570"},"content":{"rendered":"<p>\u5173\u4e8e\u5728Spring Boot\u73af\u5883\u4e2d\u4f7f\u7528Spring Batch\u542f\u52a8\u4f5c\u4e1a\u53c2\u6570\u7684\u65b9\u6cd5\uff0c\u8bf7\u8bf4\u660e\u3002<\/p>\n<h1>\u6e90\u4ee3\u7801\u7b49<\/h1>\n<h2>\u4f7f\u7528Gradle\u6784\u5efa\u6587\u4ef6<\/h2>\n<pre class=\"post-pre\"><code><span class=\"n\">plugins<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">id<\/span> <span class=\"s1\">'org.springframework.boot'<\/span> <span class=\"n\">version<\/span> <span class=\"s1\">'2.2.6.RELEASE'<\/span>\r\n  <span class=\"n\">id<\/span> <span class=\"s1\">'io.spring.dependency-management'<\/span> <span class=\"n\">version<\/span> <span class=\"s1\">'1.0.9.RELEASE'<\/span>\r\n  <span class=\"n\">id<\/span> <span class=\"s1\">'java'<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"n\">configurations<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">developmentOnly<\/span>\r\n  <span class=\"n\">runtimeClasspath<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">extendsFrom<\/span> <span class=\"n\">developmentOnly<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"n\">compileOnly<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">extendsFrom<\/span> <span class=\"n\">annotationProcessor<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n\r\n<span class=\"k\">repositories<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">mavenCentral<\/span><span class=\"o\">()<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"k\">dependencies<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">implementation<\/span> <span class=\"s1\">'org.springframework.boot:spring-boot-starter-batch'<\/span>\r\n\r\n  <span class=\"n\">compileOnly<\/span> <span class=\"s1\">'org.projectlombok:lombok'<\/span>\r\n  <span class=\"n\">annotationProcessor<\/span> <span class=\"s1\">'org.projectlombok:lombok'<\/span>\r\n  <span class=\"n\">testImplementation<\/span><span class=\"o\">(<\/span><span class=\"s1\">'org.springframework.boot:spring-boot-starter-test'<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">exclude<\/span> <span class=\"nl\">group:<\/span> <span class=\"s1\">'org.junit.vintage'<\/span><span class=\"o\">,<\/span> <span class=\"nl\">module:<\/span> <span class=\"s1\">'junit-vintage-engine'<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"n\">testImplementation<\/span> <span class=\"s1\">'org.springframework.batch:spring-batch-test'<\/span>\r\n  <span class=\"n\">implementation<\/span> <span class=\"s1\">'com.h2database:h2'<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"n\">test<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">useJUnitPlatform<\/span><span class=\"o\">()<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n<h2>\u6307\u5b9aJob\u7684\u542f\u52a8\u53c2\u6570\u65b9\u6cd5<\/h2>\n<p>\u5982\u679c\u4e0eSpring Boot\u4e00\u8d77\u4f7f\u7528\uff0c\u5219\u53ef\u4ee5\u6307\u5b9a\u4ee5\u4e0b\u547d\u4ee4\u884c\u53c2\u6570\uff0c\u5c06\u5176\u4f5c\u4e3aSpring Batch\u4f5c\u4e1a\u542f\u52a8\u53c2\u6570\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">java<\/span> <span class=\"o\">-<\/span><span class=\"n\">jar<\/span> <span class=\"n\">springbatchsample<\/span><span class=\"o\">.<\/span><span class=\"na\">jar<\/span> <span class=\"n\">hoge<\/span><span class=\"o\">.<\/span><span class=\"na\">param001<\/span><span class=\"o\">=<\/span><span class=\"n\">hoge<\/span>\r\n<\/code><\/pre>\n<h2>\u63a5\u53d7\u65b9\u5f0f<\/h2>\n<p>\u5173\u4e8e\u5982\u4f55\u63a5\u6536Java\u4f5c\u4e1a\u542f\u52a8\u53c2\u6570\u3002\u8fd9\u6709\u51e0\u79cd\u53d8\u4f53\u3002\u8bf7\u5ffd\u7565reader\u7684\u5b9e\u73b0\uff0c\u56e0\u4e3a\u5b83\u53ea\u662f\u968f\u610f\u7f16\u5199\u7684\u3002<\/p>\n<h3>SpEL &#8211; jobParameters[&#8216;hoge.param001&#8217;] \u7684\u6c49\u8bed\u8868\u8fbe\u9009\u9879\u4e3a\uff1a<\/h3>\n<p>\u5982\u4f55\u4f7f\u7528SpEL\u548c@Value\u3002\u53ea\u9700\u8fd9\u6837\u4f7f\u7528@Value(&#8220;#{jobParameters[&#8216;hoge.param001&#8217;]}&#8221;)\uff0c\u5373\u53ef\u63a5\u6536\u5230\u4e0a\u8ff0\u547d\u4ee4\u884c\u4e2d\u7684hoge.param001=hoge\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.batch.core.configuration.annotation.StepScope<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.batch.item.ItemReader<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.batch.item.NonTransientResourceException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.batch.item.ParseException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.batch.item.UnexpectedInputException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.beans.factory.annotation.Value<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.stereotype.Component<\/span><span class=\"o\">;<\/span>\r\n\r\n<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\">MyReader<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">ItemReader<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"nd\">@Value<\/span><span class=\"o\">(<\/span><span class=\"s\">\"#{jobParameters['hoge.param001']}\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"nc\">String<\/span> <span class=\"n\">param001<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">Integer<\/span> <span class=\"nf\">read<\/span><span class=\"o\">()<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span><span class=\"o\">,<\/span> <span class=\"nc\">UnexpectedInputException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ParseException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">NonTransientResourceException<\/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=\"n\">param001<\/span><span class=\"o\">);<\/span>\r\n\r\n    <span class=\"k\">return<\/span> <span class=\"kc\">null<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\u7ed9\u4e88 @StepScope \u6ce8\u89e3\u7684\u65b9\u6cd5\u3002\u5173\u4e8e\u8fd9\u4e2a\u539f\u56e0\uff0c\u8bf7\u53c2\u8003 https:\/\/terasoluna-batch.github.io\/guideline\/5.0.0.RELEASE\/ja\/Ch04_JobParameter.html#Ch04_JobParameter_HowToUse_CLIArgs \u4e2d\u7684\u201c\u5bf9\u4e8e\u5f15\u7528 JobParameters \u7684 Bean\uff0c\u5176\u4f5c\u7528\u57df\u5fc5\u987b\u4e3a Step \u4f5c\u7528\u57df\u201d\u7684\u8bf4\u660e\u3002<\/p>\n<h3>\u6b65\u9aa4\u4e4b\u524d<\/h3>\n<p>\u5728\u4e2d\u56fd\u4e3b\u8981\u4f7f\u7528\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528`@BeforeStep`\u8fdb\u884c\u76d1\u542c\u5668\uff0c\u5728\u8be5\u65b9\u6cd5\u7684\u53c2\u6570`stepExecution`\u4e2d\u83b7\u53d6\u4f5c\u4e1a\u542f\u52a8\u53c2\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">MyReader2<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">ItemReader<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">&gt;<\/span>  <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"nd\">@BeforeStep<\/span>\r\n  <span class=\"kt\">void<\/span> <span class=\"nf\">beforeStep<\/span><span class=\"o\">(<\/span><span class=\"nc\">StepExecution<\/span> <span class=\"n\">stepExecution<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nc\">String<\/span> <span class=\"n\">param001<\/span> <span class=\"o\">=<\/span> <span class=\"n\">stepExecution<\/span><span class=\"o\">.<\/span><span class=\"na\">getJobParameters<\/span><span class=\"o\">().<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"hoge.param001\"<\/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\">\"##\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">param001<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">Integer<\/span> <span class=\"nf\">read<\/span><span class=\"o\">()<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span><span class=\"o\">,<\/span> <span class=\"nc\">UnexpectedInputException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ParseException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">NonTransientResourceException<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"kc\">null<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u4f5c\u4e3a\u4e0a\u8ff0\u7684\u4e00\u4e2a\u9009\u62e9\uff0c\u53ef\u4ee5\u4e0d\u4f7f\u7528\u6ce8\u91ca\u800c\u662f\u5b9e\u73b0\u4f20\u7edf\u7684StepExecutionListener\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">MyReader3<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">ItemReader<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">&gt;,<\/span> <span class=\"nc\">StepExecutionListener<\/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\">beforeStep<\/span><span class=\"o\">(<\/span><span class=\"nc\">StepExecution<\/span> <span class=\"n\">stepExecution<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nc\">String<\/span> <span class=\"n\">param001<\/span> <span class=\"o\">=<\/span> <span class=\"n\">stepExecution<\/span><span class=\"o\">.<\/span><span class=\"na\">getJobParameters<\/span><span class=\"o\">().<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"hoge.param001\"<\/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\">\"###\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">param001<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">Integer<\/span> <span class=\"nf\">read<\/span><span class=\"o\">()<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span><span class=\"o\">,<\/span> <span class=\"nc\">UnexpectedInputException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ParseException<\/span><span class=\"o\">,<\/span> <span class=\"nc\">NonTransientResourceException<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"kc\">null<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">ExitStatus<\/span> <span class=\"nf\">afterStep<\/span><span class=\"o\">(<\/span><span class=\"nc\">StepExecution<\/span> <span class=\"n\">stepExecution<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">stepExecution<\/span><span class=\"o\">.<\/span><span class=\"na\">getExitStatus<\/span><span class=\"o\">();<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5173\u4e8e\u5728Spring Boot\u73af\u5883\u4e2d\u4f7f\u7528Spring Batch\u542f\u52a8\u4f5c\u4e1a\u53c2\u6570\u7684\u65b9\u6cd5\uff0c\u8bf7\u8bf4\u660e\u3002 \u6e90\u4ee3\u7801\u7b49 \u4f7f\u7528Gr [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-40409","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium 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