1、添加重试依赖
<dependency><groupId>org.springframework.retry</groupId><artifactId>spring-retry</artifactId> </dependency> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId> </dependency>
2、启动类或者配置类中添加注解：
@EnableRetry
3、添加重试注解
将注解@Retryable，添加到对应方法上：
例子：
@Retryable(value = Exception.class,maxAttempts = 3,backoff = @Backoff(value = 1000))
public FullText getTextByPdfKey(String fileObjKeyName){log.info("getTextByPdfKey:{}",fileObjKeyName);try{List<Block> blocks = getBlocks(fileObjKeyName);if (!CollectionUtils.isEmpty(blocks)){FullText textByBlocks = getTextByBlocks(blocks.stream().sorted(Comparator.comparing(Block::page)).collect(Collectors.groupingBy(Block::page)));textByBlocks.setBlocks(blocks);return textByBlocks;}}catch (Exception e){log.error("getTextByPdfKey is error!",e);throw new RuntimeException("getTextByPdfKey is error!");}return new FullText();
}
注：value = Exception.class：针对哪种异常重试
maxAttempts = 3 ：重试次数
backoff = @Backoff(value = 1000) ：重试间隔时间毫秒
)
