Spring MVC响应中返回JSON数据的方法:
配置与以前相同使用<mvc:annotation-driven/>的注解配置,
但WEB-INF/lib的类路径里面要有jackson-all-1.6.9.jar这个库文件,
然后在controller里面这样写:
@Controller
@RequestMapping("/user" )
public class UserController
{
@RequestMapping("/ajax2" )
@ResponseBody
public List<User>
ajax2(){
System. out.println("ajax
request2--" );
List<User> userList= new ArrayList<User>();
for(int i=0;
i<5; i++){
User user= new User();
user.setName( "测试"+(i+1));
user.setPassword( "1234"+i);
user. new Date());
userList.add(user);
}
return userList;
}
加粗的表示这是返回由jackson转换后的json对象,可以是对象、数组、列表等,在地址里
敲入:http://localhost:8080/spring/user/ajax2 (这里工程context路径是spring),
会返回
[{birthday:1339237340265, name:测试1, password:12340}
, {birthday:1339237340265, name:测试2, password:12341}
, {birthday:1339237340265, name:测试3, password:12342}
, {birthday:1339237340265, name:测试4, password:12343}
, {birthday:1339237340265, name:测试5, password:12344}]
, {birthday:1339237340265, name:测试2, password:12341}
, {birthday:1339237340265, name:测试3, password:12342}
, {birthday:1339237340265, name:测试4, password:12343}
, {birthday:1339237340265, name:测试5, password:12344}]
的数据。