Java 封装全局异常类

今天学习Java第五天，写demo的时候捕获异常，很不习惯，毕竟PHP可以很方便直观的处理，查查资料，自己写了一个，刚开始学，写的有点LOW

1.全局异常处理类

import ;

import ;
import ;
import ;
import ;
import ;

import ;

import ;
import ;

/**
* ClassName:全局异常处理
*/
@ControllerAdvice
public class GlobalExceptionHandler {
   @Autowired
   private Environment environment;
   @ExceptionHandler(value = )
   @ResponseBody
   public JsonReturn defaultErrorHandler(HttpServletRequest request, Exception ex)
           throws Exception {
       String errorCode = null;
       String errorMsg = null;
       Object errorData = new ArrayList();
       String active = ("");
       if (ex instanceof BusinessException) {
           BusinessException se = (BusinessException) ex;
           errorCode = ();
           errorMsg = ();
           errorData = ();
           // 屏蔽线上异常
       } else if(active == "prod"){
           errorCode = "0";
           errorMsg = "内部服务错误";
       } else {
           ();
       }
      return new JsonReturn(errorCode,errorMsg, errorData);
   }

}

2.创建一个异常文件 exception

定义一个继承runtime异常的类，BaseRuntimeException

import ;

public class BaseRuntimeException extends RuntimeException {
   private Object errorData;
   private Throwable cause = null;
   private String errorCode = null;

private String errorMsg = ""; // 客户描述
private String alarmMsg = "!@#$"; // 告警描述

static final long serialVersionUID = 0L;

public BaseRuntimeException() {
}

   public BaseRuntimeException(String errorCode) {
       = errorCode;
   }

   /**
   * 透传其他模块的错误信息 Creates a new instance of BaseRuntimeException.
   *
   * @param errorCode
   * @param msg
   */
   public BaseRuntimeException(String errorCode, String msg) {
       super(msg);
       = msg;
       = errorCode;
       ();
       ();
   }

   /**
   * 透传其他模块的错误信息并告警 Creates a new instance of BaseRuntimeException.
   *
   * @param errorCode
   * @param msg
   */
   public BaseRuntimeException(String errorCode, String msg, String alarmMsg) {
       super(msg);
       = msg;
       = alarmMsg;
       = errorCode;
   }

   public BaseRuntimeException(Throwable cause) {
       super(cause);
   }

   public BaseRuntimeException(String errorCode, String msg, Throwable cause) {
       super(msg);
       = cause;
       = errorCode;
   }
   public BaseRuntimeException(String errorCode, String msg, Object data) {
       super(msg);
       = data;
       = errorCode;
   }

   @Override
   public Throwable getCause() {
       return ;
   }

   public String getExceptionMessage() {
       if (() != null) {
           return ();
       }
       if ( != null) {
           return ();
       }
       return null;
   }

   public String getErrorCode() {
       return ;
   }

   public void setErrorCode(String errorCode) {
       = errorCode;
   }

   public String getErrorMsg() {
       return errorMsg;
   }

   public void setErrorMsg(String errorMsg) {
       = errorMsg;
   }

   public String getAlarmMsg() {
       return alarmMsg;
   }

   public void setAlarmMsg(String alarmMsg) {
       = alarmMsg;
   }

   public boolean isAlarm() {
       if ((!()) && (!("!@#$"))) {
           return true;
       }
       return false;
   }

}

3.定义全局返回

import ;

/**
* 全局错误码
* Created by LY on 2018/04/11.
*/
public enum GlobalErrorCode{
// Login error

LOGIN_ERROR_TOKEN_INVALID("-10000", "无效的token.", new ArrayList<>()),
/**
* 参数类错误码
*/
REQUEST_PACKET_ERROR("400010","请求数据错误！"),
TCP_SYSTEM_CONNECT_ERROR("400012","连接数据服务器失败！"),
REQUEST_PARSE_PACKET_ERROR("400015","服务器处理数据失败！"),

REQUEST_DB_ADD_ERROR("30001","数据库添加处理失败！"),

REQUEST_DB_SAVE_ERROR("30002","数据库修改处理失败！"),

REQ_PARAM_TOKEN_NOTNULL("400014","token参数为空！"),

REQ_PARAM_TTL_INVALID("-10000","登陆超时！");

GlobalErrorCode(String code,String message){
= code;
= message;
}
GlobalErrorCode(String code,String message, Object data){
= code;
= message;
= data;
}

private String code;
private String message;
private Object data;

public String getCode() {
return ;
}

public String getMessage() {
return ;
}

public Object getData() {
return data;
}

public void setData(Object data) {
= data;
}
}

4.错误捕捉

import ;

public class BusinessException extends BaseRuntimeException {

private static final long serialVersionUID = 1L;

//自定义错误码
private String code;
private Object data;

//自定义构造器，只保留一个，让其必须输入错误码及内容
public BusinessException(String code, String msg) {
super(code, msg);
= code;
}

public BusinessException(String code, String msg, Object data) {
super(code, msg, data);
= code;
= data;
}

public BusinessException(GlobalErrorCode globalErrorCode) {
super((), (), ());
= ();
= ();
}

public String getCode() {
return ;
}

public void setCode(String code) {
= code;
}

public Object getData() {
return data;
}

public void setData(Object data) {
= data;
}
}

基本以上四个可以拿去直接使用

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Java 封装全局异常类

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