java项目构建基础：统一结果

Java项目构建基础：统一结果，统一异常，统一日志（好文推荐） 

/**
 * 接口响应状态码
 */
public enum ResponseCodeStatus {
    SUCCESS("0","成功"),
    FAIL("1","失败"),
    OVERTIME("2","超时"),
    WARNING("3","警告"),
    UNAUTHENTICATED("4","无权限")
    ;
    private String code;
    private String msg;
    ResponseCodeStatus(String code, String msg){
        this.code = code;
        this.msg = msg;
    }

    @Override
    public String toString(){
        return code;
    }

    public String getCode() {
        return code;
    }

    public String getMsg() {
        return msg;
    }
}

import java.io.Serializable;
import java.sql.SQLException;
/**
 * 返回前端的判断实体
 *
 */
public class ResponseState implements Serializable{
	private String code;
	private Object data;
	private String msg;

	public ResponseState(){}

	public ResponseState(ResponseCodeStatus status, Object data, String msg){
		this.code = status.getCode();
		this.data = data;
		this.msg = msg;
	}

	/**
	 * 响应信息
	 * @return ResponseState
	 */
	public static ResponseState ofResult(ResponseCodeStatus code, Object data, String msg) {
		return new ResponseState(code,data,msg);
	}

	/**
	 * 成功只返回状态
	 * @return ResponseState
	 */
	public static ResponseState ofSuccess() {
		return new ResponseState(ResponseCodeStatus.SUCCESS,"SUCCESS","SUCCESS");
	}

	/**
	 * 成功返回数据
	 * @return ResponseState
	 */
	public static ResponseState ofSuccess(Object data) {
		return new ResponseState(ResponseCodeStatus.SUCCESS,data,null);
	}

	/**
	 * 成功返回数据
	 * @return ResponseState
	 */
	public static ResponseState ofSuccess(Object data,String msg) {
		return new ResponseState(ResponseCodeStatus.SUCCESS,data,msg);
	}

	/**
	 * 警告返回数据
	 * @return ResponseState
	 */
	public static ResponseState ofWarning(Object data) {
		return new ResponseState(ResponseCodeStatus.WARNING,data,null);
	}

	/**
	 * 警告返回数据
	 * @return ResponseState
	 */
	public static ResponseState ofWarning(Object data,String msg) {
		return new ResponseState(ResponseCodeStatus.WARNING,data,msg);
	}
	/**
	 * 警告不返回数据
	 * @return ResponseState
	 */
	public static ResponseState ofWarning(String msg) {
		return new ResponseState(ResponseCodeStatus.WARNING,null,msg);
	}

	/**
	 * 失败只返回状态
	 * @return ResponseState
	 */
	public static ResponseState ofFail() {
		return new ResponseState(ResponseCodeStatus.FAIL,null,null);
	}

	/**
	 * 失败返回失败信息
	 * @return ResponseState
	 */
	public static ResponseState ofFail(String msg) {
		return new ResponseState(ResponseCodeStatus.FAIL,null,msg);
	}

	/**
	 * session过期只返回状态
	 * @return ResponseState
	 */
	public static ResponseState ofOverTime() {
		return new ResponseState(ResponseCodeStatus.OVERTIME,null,"session过期,请重新登录");
	}

	/**
	 * session过期只返回状态
	 * @return ResponseState
	 */
	public static ResponseState ofOverTime(Object data) {
		return new ResponseState(ResponseCodeStatus.OVERTIME,data,"session过期,请重新登录");
	}

	public static ResponseState ofOverTime(String msg) {
		return new ResponseState(ResponseCodeStatus.OVERTIME,null,msg);
	}
	public static ResponseState ofUnauthenticated(String msg) {
		return new ResponseState(ResponseCodeStatus.UNAUTHENTICATED,null,msg);
	}

	public String getCode() {
		return code;
	}

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

	public Object getData() {
		return data;
	}

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

	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}
}