序言：很多时候都要写try catch，所以为了减少代码把异常处理单独拿出来，做一个全局处理，一般公司都是自定义异常为主，今天写一个默认异常和自定义异常的配置，很简单，五分钟就能掌握，而且代码全面，属于企业用法。
1、pom依赖
org.springframework.boot spring-boot-starter-web org.projectlombok lombok true
2、application.properties
server.port=8082
3、响应信息
@Data
@AllArgsConstructor
public class Result {
private boolean success;
private String code;
private String message;
private Object data;
public Result() {
this.success = true;
this.code = "200";
}
}
4、自定义异常
@Data
@NoArgsConstructor
@AllArgsConstructor
public class MyException extends RuntimeException {
/**
* 异常状态码
*/
private String code;
/**
* 异常信息
*/
private String message;
/**
* 发生的方法
*/
private String method;
/**
* 描述
*/
private String desc;
}
5、全局一场配置
@Controller
@ControllerAdvice
public class MyControllerAdvice {
/**
* 全局异常处理
*/
@ResponseBody
@ExceptionHandler(value = Exception.class)
public Result exceptionHandler(Exception e){
Result result = new Result();
result.setCode("201");
result.setSuccess(false);
result.setMessage(e.getMessage());
//异常业务逻辑处理（日志记录或者其他存储）
return result;
}
/**
* 自定义异常
*/
@ResponseBody
@ExceptionHandler(value = MyException.class)
public Result exceptionHandler(MyException e) {
Result result = new Result();
result.setCode(e.getCode());
result.setMessage(e.getMessage());
result.setSuccess(false);
result.setData(e.getDesc());
return result;
}
}
6、Controller层
@Controller
public class FirstController {
@RequestMapping(value = "/test",method = RequestMethod.GET)
@ResponseBody
public Result test1() throws Exception {
throw new Exception("dnwbid");
}
@RequestMapping(value = "/test2",method = RequestMethod.GET)
@ResponseBody
public Result test2() {
throw new MyException("201","测试异常保持","testOne","desc");
}
}
7、测试
http://localhost:8082/test1
http://localhost:8082/test2