{"id":40292,"date":"2024-01-15T07:36:37","date_gmt":"2023-07-12T06:03:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%98%a5%e5%ad%a3%e9%87%8d%e8%af%95%e9%97%ae%e9%a2%98%e6%8e%92%e6%9f%a5\/"},"modified":"2024-05-04T18:29:21","modified_gmt":"2024-05-04T10:29:21","slug":"%e6%98%a5%e5%ad%a3%e9%87%8d%e8%af%95%e9%97%ae%e9%a2%98%e6%8e%92%e6%9f%a5","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%98%a5%e5%ad%a3%e9%87%8d%e8%af%95%e9%97%ae%e9%a2%98%e6%8e%92%e6%9f%a5\/","title":{"rendered":"\u6625\u5b63\u91cd\u8bd5\u95ee\u9898\u6392\u67e5"},"content":{"rendered":"<h2>\u603b\u7ed3<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Spring Retry \u3067\u767a\u751f\u3059\u308b\u69d8\u3005\u306a\u30c8\u30e9\u30d6\u30eb\u306b\u3064\u3044\u3066\u306e\u5bfe\u5fdc\u7b56\u3092\u5217\u6319\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u4eca\u56de\u306e\u74b0\u5883: Java 8 + Spring Boot 2.2.0 + Spring Retry 1.2.4<\/ul>\n<h2>\u65e0\u6cd5\u7f16\u8bd1\u3002<\/h2>\n<p>\u4f1a\u8f93\u51fa\u4ee5\u4e0b\u7c7b\u4f3c\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code>Error:(3, 44) java: \u30d1\u30c3\u30b1\u30fc\u30b8org.springframework.retry.annotation\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\r\nError:(11, 4) java: \u30b7\u30f3\u30dc\u30eb\u3092\u898b\u3064\u3051\u3089\u308c\u307e\u305b\u3093\r\n  \u30b7\u30f3\u30dc\u30eb:   \u30af\u30e9\u30b9 Retryable\r\n<\/code><\/pre>\n<p>\u53ef\u80fd\u662f\u56e0\u4e3a\u5c1a\u672a\u5f15\u5165Spring Retry\uff0c\u5e94\u8be5\u5f15\u5165Spring Retry\u3002<\/p>\n<p>\u5bf9\u4e8eApache Maven\uff0c\u8bf7\u5728pom.xml\u7684dependencies\u5143\u7d20\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">&lt;!-- https:\/\/mvnrepository.com\/artifact\/org.springframework.retry\/spring-retry --&gt;<\/span>\r\n<span class=\"nt\">&lt;dependency&gt;<\/span>\r\n  <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.retry<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n  <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-retry<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n  <span class=\"nt\">&lt;version&gt;<\/span>1.2.4.RELEASE<span class=\"nt\">&lt;\/version&gt;<\/span>\r\n<span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728Gradle\u4e2d\uff0c\u9700\u8981\u5728build.gradle\u7684dependencies\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">implementation<\/span> <span class=\"s1\">'org.springframework.retry:spring-retry:1.2.4.RELEASE'<\/span>\r\n<\/code><\/pre>\n<h2>\u65e0\u6cd5\u6267\u884c\uff08\u53d1\u751f BeanCreationException\uff09<\/h2>\n<p>\u53d1\u751f\u4ee5\u4e0b\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code>org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org\/aspectj\/lang\/annotation\/Pointcut\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>Caused by: java.lang.NoClassDefFoundError: org\/aspectj\/lang\/annotation\/Pointcut\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation.Pointcut\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u8fd0\u884cSpring Retry\u65f6\uff0c\u9700\u8981\u4f7f\u7528AspectJ\u7684aspectjweaver\u3002<br \/>\n\u5982\u679c\u4f7f\u7528Spring Boot\uff0c\u5219\u53ef\u4ee5\u8003\u8651\u5f15\u5165Spring Boot AOP Starter\u3002<\/p>\n<p>\u5bf9\u4e8e Apache Maven\uff0c\u9700\u8981\u5728 pom.xml \u6587\u4ef6\u7684 dependencies \u5143\u7d20\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">&lt;!-- https:\/\/mvnrepository.com\/artifact\/org.springframework.boot\/spring-boot-starter-aop --&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-aop<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n  <span class=\"nt\">&lt;scope&gt;<\/span>runtime<span class=\"nt\">&lt;\/scope&gt;<\/span>\r\n<span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728Gradle\u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u5728build.gradle\u6587\u4ef6\u7684dependencies\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">runtime<\/span><span class=\"o\">(<\/span><span class=\"s1\">'org.springframework.boot:spring-boot-starter-aop'<\/span><span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<h2>\u4e0d\u4f1a\u91cd\u8bd5<\/h2>\n<h3>\u6307\u5b9a@EnableRetry<\/h3>\n<p>\u8981\u4f7f\u7528Spring Retry\uff0c\u9700\u8981\u5728\u5e94\u7528\u7a0b\u5e8f\u7c7b\u6216\u5176\u4ed6\u7c7b\u4e0a\u6307\u5b9a@EnableRetry\u6ce8\u89e3\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.SpringApplication<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.autoconfigure.SpringBootApplication<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.EnableRetry<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@SpringBootApplication<\/span>\r\n<span class=\"nd\">@EnableRetry<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">DemoApplication<\/span> <span class=\"o\">{<\/span>\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\">DemoApplication<\/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<h3>@Service @Repository @Component \u7b49\u7b49\u662f\u7528\u4e8e\u6307\u5b9a\u7684<\/h3>\n<p>\u6ca1\u6709\u6ce8\u518c\u5230DI\u5bb9\u5668\u7684\u7c7b\u4e0d\u4f1a\u88ab\u89c6\u4e3a\u91cd\u8bd5\u76ee\u6807\u3002<br \/>\n\u5bf9\u4e8e\u9700\u8981\u6267\u884c\u91cd\u8bd5\u64cd\u4f5c\u7684\u7c7b\uff0c\u53ef\u4ee5\u4f7f\u7528@Service\u3001@Repository\u3001@Component\u7b49\u6ce8\u89e3\u6765\u6307\u5b9a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Backoff<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Recover<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Retryable<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.stereotype.Service<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Service<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">DemoService<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"nd\">@Retryable<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"n\">value<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">RuntimeException<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n    <span class=\"n\">maxAttempts<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"n\">backoff<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">@Backoff<\/span><span class=\"o\">(<\/span><span class=\"n\">delay<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1000<\/span><span class=\"o\">))<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">hello<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">RuntimeException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"This is a sample error.\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"nd\">@Recover<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">recover<\/span><span class=\"o\">(<\/span><span class=\"nc\">RuntimeException<\/span> <span class=\"n\">e<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"n\">e<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u6307\u5b9a @Retryable<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528 @Retryable \u6ce8\u91ca\u5728\u65b9\u6cd5\u4e2d\u6307\u5b9a\u8981\u91cd\u8bd5\u7684\u5f02\u5e38\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 value \u6216 include \u6765\u6307\u5b9a\uff08value \u53ef\u4ee5\u4f5c\u4e3a include \u7684\u522b\u540d\u4f7f\u7528\uff09\u3002\u6b64\u5916\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 exclude \u6765\u6307\u5b9a\u4e0d\u9700\u8981\u91cd\u8bd5\u7684\u5f02\u5e38\u7c7b\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Retryable<\/span><span class=\"o\">(<\/span>\r\n  <span class=\"n\">include<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">Exception<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n  <span class=\"n\">exclude<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">RuntimeException<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n  <span class=\"n\">maxAttempts<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"n\">backoff<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">@Backoff<\/span><span class=\"o\">(<\/span><span class=\"n\">delay<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1000<\/span><span class=\"o\">))<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">hello<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">RuntimeException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"This is a sample error.\"<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Retryable<\/span><span class=\"o\">(<\/span>\r\n  <span class=\"n\">value<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">Exception<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n  <span class=\"n\">exclude<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">RuntimeException<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n  <span class=\"n\">maxAttempts<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"n\">backoff<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">@Backoff<\/span><span class=\"o\">(<\/span><span class=\"n\">delay<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1000<\/span><span class=\"o\">))<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">hello<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">RuntimeException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"This is a sample error.\"<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u4f7f\u7528@Autowired\u8fdb\u884c\u6307\u5b9a<\/h3>\n<p>\u5bf9\u4e8e\u672a\u5728 DI \u5bb9\u5668\u4e2d\u6ce8\u518c\u7684\u7c7b\uff0c\u7531\u4e8e\u4e0d\u80fd\u91cd\u8bd5\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u7684\u5730\u65b9\u9700\u8981\u6307\u5b9a\u4ee5\u4e0b\u7684 @Autowired \u6ce8\u89e3\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.beans.factory.annotation.Autowired<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.stereotype.Controller<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.web.bind.annotation.RequestMapping<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Controller<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">DemoController<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u30ea\u30c8\u30e9\u30a4\u51e6\u7406\u304c\u66f8\u3044\u3066\u3042\u308b\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b @Autowired \u3092\u6307\u5b9a<\/span>\r\n  <span class=\"nd\">@Autowired<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nc\">MyRetryableService<\/span> <span class=\"n\">service<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"nd\">@RequestMapping<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\/\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">index<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">service<\/span><span class=\"o\">.<\/span><span class=\"na\">hello<\/span><span class=\"o\">(<\/span><span class=\"s\">\"hello\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"goodbye\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u8c03\u7528\u4e86\u5e26\u6709 @Recover \u6ce8\u89e3\u7684\u65b9\u6cd5\u672a\u6267\u884c\uff08\u5bfc\u81f4\u4e86 ExhaustedRetryException \u5f02\u5e38\uff09\u3002<\/h2>\n<p>\u51fa\u73b0\u4ee5\u4e0b\u7684\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code>org.springframework.retry.ExhaustedRetryException: Cannot locate recovery method; nested exception is java.lang.RuntimeException: This is a sample error.\r\n    at org.springframework.retry.annotation.RecoverAnnotationRecoveryHandler.recover(RecoverAnnotationRecoveryHandler.java:61)\r\n    at org.springframework.retry.interceptor.RetryOperationsInterceptor$ItemRecovererCallback.recover(RetryOperationsInterceptor.java:141)\r\n    at org.springframework.retry.support.RetryTemplate.handleRetryExhausted(RetryTemplate.java:512)\r\n    at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:351)\r\n    at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:180)\r\n<\/code><\/pre>\n<p>\u9700\u8981\u5c06\u5e26\u6709 @Recover \u6ce8\u89e3\u7684\u65b9\u6cd5\u4e0e\u53ef\u91cd\u8bd5\u65b9\u6cd5\u7684\u7b7e\u540d\u5339\u914d\u3002<br \/>\n\u5177\u4f53\u6765\u8bf4\uff0c\u9700\u8981\u5c06\u201c\u8fd4\u56de\u7c7b\u578b\u201d\u548c\u201c\u53ef\u91cd\u8bd5\u5f02\u5e38\u7c7b\u578b\u201d\u4f5c\u4e3a\u53c2\u6570\u6765\u63cf\u8ff0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Backoff<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Recover<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Retryable<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.stereotype.Service<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Service<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">DemoService<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u623b\u308a\u5024\u304c String<\/span>\r\n  <span class=\"c1\">\/\/ \u4f8b\u5916\u304c RuntimeException<\/span>\r\n  <span class=\"nd\">@Retryable<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"n\">value<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">RuntimeException<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n    <span class=\"n\">maxAttempts<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"n\">backoff<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">@Backoff<\/span><span class=\"o\">(<\/span><span class=\"n\">delay<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1000<\/span><span class=\"o\">))<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">hello<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/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\">\"DemoService#hello\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">RuntimeException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"This is a sample error.\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u623b\u308a\u5024\u304c String<\/span>\r\n  <span class=\"c1\">\/\/ \u5f15\u6570\u306b\u30ea\u30c8\u30e9\u30a4\u5bfe\u8c61\u306e\u4f8b\u5916\u3067\u3042\u308b RuntimeException \u3092\u8a18\u8ff0<\/span>\r\n  <span class=\"nd\">@Recover<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">recover<\/span><span class=\"o\">(<\/span><span class=\"nc\">RuntimeException<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"n\">e<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8fd8\u6709\uff0c\u539f\u6765\u7684\u65b9\u6cd5\u7684\u53c2\u6570\u4e0d\u9700\u8981\u5b58\u5728\u4e8e\u6307\u5b9a\u4e86@Recover\u6ce8\u89e3\u7684\u65b9\u6cd5\u4e2d\uff0c\u4f46\u901a\u8fc7\u6dfb\u52a0\u8be5\u6ce8\u89e3\uff0c\u53ef\u4ee5\u5c06\u539f\u65b9\u6cd5\u4f20\u9012\u7684\u503c\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff0c\u4ece\u800c\u83b7\u53d6\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Backoff<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Recover<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.retry.annotation.Retryable<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.stereotype.Service<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Service<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">DemoService<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u623b\u308a\u5024\u304c String<\/span>\r\n  <span class=\"c1\">\/\/ \u4f8b\u5916\u304c RuntimeException<\/span>\r\n  <span class=\"c1\">\/\/ \u5f15\u6570\u304c String foo \u3068 String bar<\/span>\r\n  <span class=\"nd\">@Retryable<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"n\">value<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"nc\">RuntimeException<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">},<\/span>\r\n    <span class=\"n\">maxAttempts<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"n\">backoff<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">@Backoff<\/span><span class=\"o\">(<\/span><span class=\"n\">delay<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1000<\/span><span class=\"o\">))<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">hello<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/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\">\"DemoService#hello\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">RuntimeException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"This is a sample error.\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u623b\u308a\u5024\u304c String<\/span>\r\n  <span class=\"c1\">\/\/ \u5f15\u6570\u306b\u30ea\u30c8\u30e9\u30a4\u5bfe\u8c61\u306e\u4f8b\u5916\u3067\u3042\u308b RuntimeException \u3092\u8a18\u8ff0<\/span>\r\n  <span class=\"c1\">\/\/ \u4f8b\u5916\u306e\u5f15\u6570\u306e\u3042\u3068\u306b\u3001\u30ea\u30c8\u30e9\u30a4\u5bfe\u8c61\u30e1\u30bd\u30c3\u30c9\u5f15\u6570\u306e String foo \u3068 String bar \u3092\u8ffd\u52a0<\/span>\r\n  <span class=\"nd\">@Recover<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">recover<\/span><span class=\"o\">(<\/span><span class=\"nc\">RuntimeException<\/span> <span class=\"n\">e<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">foo<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">bar<\/span><span class=\"o\">)<\/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\">\"foo=\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">foo<\/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\">\"bar=\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">bar<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"n\">e<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u4ec5\u9700\u8981\u4e00\u79cd\u9009\u62e9\uff1a\u8bf7\u4e3a\u4ee5\u4e0b\u5185\u5bb9\u63d0\u4f9b\u4e2d\u6587\u7684\u672c\u571f\u91ca\u4e49\uff1a\u53c2\u8003\u8d44\u6599\u3002<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">GitHub &#8211; spring-projects\/spring-retry<\/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-retry 1.2.4.RELEASE javadoc (org.springframework.retry)<\/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 Retry \u306e include, exclude, ExhaustedRetryException \u306e\u6319\u52d5\u3092\u78ba\u8a8d\u3059\u308b &#8211; Qiita<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Spring Retry \u3092\u5229\u7528\u3057\u3066\u5ba3\u8a00\u578b\u306e\u30ea\u30c8\u30e9\u30a4\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b &#8211; Qiita<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u603b\u7ed3 Spring Retry \u3067\u767a\u751f\u3059\u308b\u69d8\u3005\u306a\u30c8\u30e9\u30d6\u30eb\u306b\u3064\u3044\u3066\u306e\u5bfe\u5fdc\u7b56\u3092\u5217\u6319\u3059\u308b &nbsp; \u4eca\u56de\u306e\u74b0\u5883: [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-40292","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>\u6625\u5b63\u91cd\u8bd5\u95ee\u9898\u6392\u67e5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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