SpringMVC與頁面的json傳值方式：
Index.html頁面：
<script type="text/javascript" src="../js/jquery-3.2.1.min.js"></script>
<script type="text/javascript">
$(function() {
$("#btn2").click(function() {
jsonTest2();
})
$("#btn").click(function() {
jsonTest();
})
});
向頁面串值時，不要忘記加：contentType:"application/json;charset=utf-8",
function jsonTest2() {
$.ajax({
url : "/SpringMVC/jsonController/jsonTest2.action",
type : "post",
data : '{"t_user_id":"1","username":"張琳","userage":"12"}',
contentType:"application/json;charset=utf-8",
success : function(data) {
alert(data.username + ":" + data.userage);
}
});
}
function jsonTest() {
$.ajax({
url : "/SpringMVC/jsonController/jsonTest.action",
type : "post",
success : function(response) {
console.log(response);
$.each(response, function(i, v) {
alert(v.name + " : " + v.age);
});
}
});
</script>
<button type="button" id="btn2">點選再試試</button>
<button type="button" id="btn">點選試試</button>
Controller中：
匯入jackson相關的三個jar包：
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.7</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.7</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.7</version>
</dependency>
@Controller
@RequestMapping("/jsonController")
public class JsonController {
/*
* 接收資料
*/
@ResponseBody
@RequestMapping("/jsonTest2")
public User test2(@RequestBody User user) {
userService.addUser(user);
System.out.println(user.toString());
return user;
}
/*
* 查詢所有的使用者
*/
@ResponseBody
@RequestMapping("/jsonTest")
public List<Map<String, Object>> test() {
List<Map<String, Object>> userList = this.getUserList();
return userList;
}
}