求一个封装好的ResultModel类

[weixin_38316591]

求一个封装好的ResultModel类，可以return自定义异常的，可以把查询结果放进ResultModel中返回的。
用法可以类似下面的这种

[stacksoverflow]

ResultModel.java

public class ResultModel {

	private User user;
	
	public void setModel(User user) {
		this.user = user;
	}
	
	public User getModel() {
		return this.user;
	}
}

BusinessException.java

public class BusinessException extends Exception{

	private static final long serialVersionUID = 1L;

	public BusinessException() {
		super();
	}
	
	public BusinessException(String code) {
		super(code);
	}
}

[一个治疗术]

package io.aschouas.common.utils;

import org.apache.http.HttpStatus;

import java.util.HashMap;
import java.util.Map;

/**
 * 
 * @author 治疗术	
 * @Date：2018年6月25日 下午4:44:42
 * @Description: TODO(...) 
 * @version
 */
public class R extends HashMap<String, Object> {
	private static final long serialVersionUID = 1L;
	
	public R() {
		put("code", 200);
		put("msg", "success");
	}
	
	public static R error() {
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "出错了,哈哈哈");
	}
	
	public static R error(String msg) {
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
	}
	
	public static R error(int code, String msg) {
		R r = new R();
		r.put("code", code);
		r.put("msg", msg);
		return r;
	}

	public static R ok(String msg) {
		R r = new R();
		r.put("msg", msg);
		return r;
	}
	
	public static R ok(Map<String, Object> map) {
		R r = new R();
		r.putAll(map);
		return r;
	}
	
	public static R ok() {
		return new R();
	}

	public R put(String key, Object value) {

[一个治疗术]

异常捕获抛出

package io.aschouas.common.exception;

/**
 * 自定义异常
 */
public class RRException extends RuntimeException {
	private static final long serialVersionUID = 1L;
	
    private String msg;
    private int code = 500;
    
    public RRException(String msg) {
		super(msg);
		this.msg = msg;
	}
	
	public RRException(String msg, Throwable e) {
		super(msg, e);
		this.msg = msg;
	}
	
	public RRException(String msg, int code) {
		super(msg);
		this.msg = msg;
		this.code = code;
	}
	
	public RRException(String msg, int code, Throwable e) {
		super(msg, e);
		this.msg = msg;
		this.code = code;
	}

	public String getMsg() {
		return msg;
	}

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

	public int getCode() {
		return code;
	}

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