import com.alibaba.fastjson.JSON;
List集合和字符串互转
@Test
public void listTo() {
List<UserInfo> list= new ArrayList<UserInfo>();
UserInfo u1 = new UserInfo();
u1.setUserId("1");
u1.setUserName("小米");
list.add(u1);
UserInfo u2 = new UserInfo();
u2.setUserId("2");
u2.setUserName("大米");
list.add(u2);
//将list转字符串
String str = JSON.toJSONString(list);
//将字符串转list
List<UserInfo> userInfo1 = JSON.parseArray(str,UserInfo.class);
}