java使用枚举封装错误码及错误信息详解

目录枚举封装错误码及错误信息用法如下封装返回结果类和枚举错误码枚举错误码封装返回结果类

枚举封装错误码及错误信息

使用枚举类型来封装project中所需要的错误码和错误信息，十分方便。

用法如下

package com.dear.simpler.dbservice; /** *  * @author lixiang *使用枚举类型来封装异常码和异常信息 * */public enum DBServiceError { //RPC层调用错误码 DB_SERVICE_OK(20100,"服务正常"),DB_SERVICE_DBDAO_ERROR(20104,"返回数据库的具体异常信息"),DB_SERVICE_SPEAKER_NOT_EXISTED(20108,"数据库中没有要查询的speaker"),DB_SERVICE_SPEAKER_HAVE_NOT_VP(20109,"speaker中没有对应的voiceprint"),DB_SERVICE_UNKNOWN_ERROR(20101,"未知异常"),DB_SERVICE_AGENT_ERROR(20102,"DBServiceAgent异常"),DB_SERVICE_NETWORK_ERROR (20103,"网络异常"),DB_SERVICE_INVALID_FUNCTION(20105,"方法名不存在"),DB_SERVICE_INVALID_PARAMETER(20106,"方法参数错误"),DB_SERVICE_FUNCTION_NO_ACCESS(20107,"对此方法无访问权限");    private String msg;    private int code;        private DBServiceError(int code,String msg)    {    this.code=code;        this.msg=msg;    }        public String getMsg()    {        return this.msg;    }    public int getCode() {      return this.code;  }}

使用时：

DBServiceError.DB_SERVICE_NETWORK_ERROR.getCode();

DBServiceError.DB_SERVICE_NETWORK_ERROR.getMsg();

封装返回结果类和枚举错误码

枚举错误码

/** * 枚举错误码 */public emum ErrorCode{     FAILED(601,"操作失败"),    AUTH_ERROR(401,"认证失败"),    SYS_ERROR(500,"系统错误"),    PARAM_ERROR(400,"参数错误"),    UNKNOWN_ERROR(499,"未知错误");     private int code;    private String message;        private ErrorCode(int code, String message) {     this.code=code;        this.message=message;    }        public String getMessage() {        return this.message;    }    public int getCode() {        return this.code;    }}

封装返回结果类

/** * 返回结果类 */public class JsonResult {  private int status = 0;  private String msg = "success";  private Object data;         // 几个常用方法 public JsonResult success() {            return new JsonResult();        }         public JsonResult success(Object data) {            return new JsonResult(data);        }         public JsonResult error(ErrorCode errorCode) {            return new JsonResult(errorCode.getCode(), errorCode.getMessage());        }         public JsonResult error(int state, String message) {            return new JsonResult(state, message);        }         public JsonResult error(int state, String message, Object data) {            return new JsonResult(state, message, data);        }         // 几个构造方法        public JsonResult() {        }         public JsonResult(Object data) {            this.data = data;        }         public JsonResult(Integer state, String message) {            this.state = state;            this.message = message;        }         public JsonResult(Integer state, String message, Object data) {            this.state = state;            this.message = message;            this.data = data;        }  public Integer getStatus() {  return status; }  public void setStatus(Integer status) {  this.status = status; }  public String getMsg() {  return msg; }  public void setMsg(String msg) {  this.msg = msg; }  public Object getData() {  return data; }  public void setData(Object data) {  this.data = data; }}

完美！！！

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。

有勇气并不表示恐惧不存在，而是敢面对恐惧克服恐惧