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Map转成32313133353236313431303231363533e58685e5aeb931333363393633json格式
Map map = new HashMap();
map.put(“users”, users);
map.put(“u”, u);
1.转成JSONArray类型
JSONArray json = JSONArray.fromObject(map);
System.out.println(json.toString());//
[{“users”:[{“password”:“1234”,“username”:“cxl”},
{“password”:“1234”,“username”:“lhl”}],“u”:{“password”:“1234”,“username”:“lhl”}}]
response.getWriter().print(json.toString);
js中取数据：alert(data[0].users[0].username);
2.转成JSONObject类型
JSONObject json = JSONObject.fromObject(map);
System.out.println(json);//
{“user”:[{“password”:“1234”,“username”:“cxl”},
{“password”:“1234”,“username”:“lhl”}],“u”:{“password”:“1234”,“username”:“lhl”}}
response.getWriter().print(json);
js中取数据：alert(data.user[0].username);
