1.创建一个异常:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
public class LdapQueryException extends Exception { private Integer code; private String message; public LdapQueryException(Integer code, String message) { super(message); this.code = code; this.message = message; } public Integer getCode() { return code; } public void setCode(Integer code) { this.code = code; } @Override public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } }
2.写一个异常处理器 适应注解 @ControllerAdvice 植入
@ControllerAdvice public class CommonExceptionHandler { @ResponseBody @ExceptionHandler(value = LdapQueryException.class) //value 表示处理哪个异常 public Map ldapQueryHandler(LdapQueryException exp){ Map map=new HashMap(); map.put("code",exp.getCode()); map.put("message",exp.getMessage());; return map; } }
3.使用: throw new LdapQueryException(500, "系统错误")