引用pom.xml
<dependency>
<groupId>org.springframework.retry</groupId>
<artifactId>spring-retry</artifactId>
<version>1.3.4</version>
</dependency>
注：本人测试使用jdk8
例子：
public void demo(String str) throws Throwable {
RetryTemplate build = RetryTemplate.builder().maxAttempts(10)//最大重试次数
.exponentialBackoff(1000, 2, 3 * 1000)
.retryOn(RuntimeException.class)//遇到RuntimeException触发重试
.build();
build.execute((RetryCallback<Object, Throwable>) context -> {
//执行业务逻辑
int retryCount = context.getRetryCount()+1;
log.info(">>" + str + " Retry 触发时间：" + DateUtils.emptyFormat(new Date()) + ",触发次数：" + retryCount);
//if (retryCount < 3) {
log.info(">> Retry 抛出一下 RuntimeException");
throw new RuntimeException("RuntimeException");
//}
//log.info(">> Retry 执行完毕");
//return true;
}, (RecoveryCallback<Object>) context -> {
//当重试次数耗尽时 重试次数耗尽时触发，降级业务逻辑
int retryCount = context.getRetryCount();
log.info("Retry 重试次数耗尽时触发，降级业务逻辑.共重试次数" + retryCount);
return null;
});
}public void demo(String str) throws Throwable {
RetryTemplate build = RetryTemplate.builder().maxAttempts(10)//最大重试次数
.exponentialBackoff(1000, 2, 3 * 1000)
.retryOn(RuntimeException.class)//遇到RuntimeException触发重试
.build();
build.execute((RetryCallback<Object, Throwable>) context -> {
//执行业务逻辑
int retryCount = context.getRetryCount()+1;
log.info(">>" + str + " Retry 触发时间：" + DateUtils.emptyFormat(new Date()) + ",触发次数：" + retryCount);
//if (retryCount < 3) {
log.info(">> Retry 抛出一下 RuntimeException");
throw new RuntimeException("RuntimeException");
//}
//log.info(">> Retry 执行完毕");
//return true;
}, (RecoveryCallback<Object>) context -> {
//当重试次数耗尽时 重试次数耗尽时触发，降级业务逻辑
int retryCount = context.getRetryCount();
log.info("Retry 重试次数耗尽时触发，降级业务逻辑.共重试次数" + retryCount);
return null;
});
}
执行结果：
参考文档：
https://github.com/spring-projects/spring-retry
exponentialBackoff(1000, 2, 3 * 1000) 参数含义：
标签：info,retry,RuntimeException,spring,重试,Retry,context,retryCount From： https://www.cnblogs.com/lxn0216/p/17934925.html