举例:
"{\"code\":\"OK\",\"msg\":\"success\",\"data\":{\"userId\":\"8a71e38b7723c77e56a2001b\",\"rootId\":\"0000000000\",\"status\":\"1\",\"certification\":\"L1\",\"roles\":[{\"code\":\"1\",\"roleId\":\"1\",\"name\":\"普通角色\",\"memo\":\"默认角色\"}]},\"mm\":false}"
解决:
// 通过fastJson
String s1 = JSON.parseObject(str, String.class);
AppInfo info= JSON.parseObject(s1, AppInfo .class);