如何把map转成json字符串-ag真人游戏

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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);