package com.sbm.wll.controller;

import java.util.List;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.ArrayList;
import java.util.HashMap;
import com.sbm.wll.dao.UserDao;
import com.sbm.wll.entity.User;
/**
 * 常用JSON数据处理demo
 * @author server
 *
 */
@Controller
public class Json {
	@Autowired
	private UserDao userServiceImpl;

	/**
	 * json格式字符串转json
	 * 
	 * @return
	 */
	@RequestMapping(value = "/json1")
	@ResponseBody
	public String getJson1() {
		String str = "{\"a\":\"b\", \"c\":\"d\"}";
		JSONObject obj = new JSONObject(str);//org.json
		System.out.println("json字符串转json:" + obj);
		return str;
	}

	/**
	 * List<User>转JSON Springboot自动转化 返回值类型为List 
	 * 注释掉的为使用net.sf.json工具做的 ，是正确的
	 * @return
	 */
	@RequestMapping(value = "/json2")
	@ResponseBody
	public List<User> getJson2() {
		List<User> users = null;
		users = userServiceImpl.findAll();
		// net.sf.json.JSONArray array = new
		// net.sf.json.JSONArray().fromObject(users);
		// System.out.println("-----使用.net.sf.json："+array);
		return users;
	}

	/**
	 * List<User>转JSON 返回值类型为String
	 * 
	 * @return
	 */
	@RequestMapping(value = "/json3")
	@ResponseBody
	public String getJson3() {
		List<User> users = null;
		users = userServiceImpl.findAll();
		JSONArray array = new JSONArray(); // org.json包
		for (int i = 0; i < users.size(); i++) {
			User u = users.get(i);
			JSONObject object = new JSONObject(u);
			// System.out.println("object:" + object);
			array.put(object);
		}
		System.out.println("org.json.Array:to json:" + array);
		return array.toString();
	}

	/**
	 * Map<String,String>转JSON 返回值类型为String 使用.net.sf.json
	 * 
	 * @return
	 */
	@RequestMapping(value = "/json4")
	@ResponseBody
	public String getJson4() {
		Map<String, String> map = new HashMap<>();
		map.put("1", "c100");
		map.put("2", "c233");
		map.put("4", "c556");
		net.sf.json.JSONArray array = new net.sf.json.JSONArray().fromObject(map);
		System.out.println("-----使用.net.sf.json：" + array);
		return array.toString();
	}

	/**
	 * 解析json字符串 json中 包含json数组
	 * 
	 * @param request
	 * @return
	 */
	@RequestMapping("/jx1")
	@ResponseBody
	public String jxJSON1() {
		String jsonString = "{'id':'1','corpcode':'10147','msg':{'time':'16-35','pp':'ddd'}}";
		JSONObject obj = new JSONObject(jsonString); //org.json
		System.out.println("corpcode:" + obj.getString("corpcode"));
		JSONObject msg = new JSONObject(obj.get("msg").toString());// msg不是String,要么get,要么getJSONObj
		System.out.println("msg:" + msg); // 获取msg 里面的json内容
		String time = msg.getString("time");
		System.out.println("msg---time:" + time);
		System.out.println("全部json：" + obj);
		return obj.toString();
	}

	/**
	 * 把JSON数组里面的对象，解析到实体中
	 * 
	 * @return
	 */
	@RequestMapping("/jx2")
	@ResponseBody
	public String jsJSON2() {
		String jString = "[{'id':'111','name':'小明'},{'id':'22','name':'小花'},{'id':'402','name':'小红'}]";
		com.alibaba.fastjson.JSONArray array = new com.alibaba.fastjson.JSONArray().parseArray(jString);
		List<User> users = new ArrayList<>();
		for (int i = 0; i < array.size(); i++) {
			User user = new User();
			com.alibaba.fastjson.JSONObject object = array.getJSONObject(i);
			user.setId(Integer.valueOf(object.getString("id")));
			user.setName(object.getString("name"));
			System.out.println("U:" + user.toString());
			users.add(user);
		}
		for (User u : users) {
			System.out.println("----" + u.toString());
		}
		return "";
	}

}