Devlog

Spring controller data types

,

HttpServletRequest

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

function httpServletRequestSample() {
    let data = {
        "name" : "kidongyun",
        "age"  : 26
    }

    $.ajax({
        url:'/httpServletRequestSample',
        type:'get',
        data: data,
        success:function(){

        }
    })
}

1
2
3
4
5
6
7
8
9
10

@RequestMapping(value = "/httpServletRequestSample")
public void httpServletRequestSample(HttpServletRequest request){

    String name = request.getParameter("name");
    String age = request.getParameter("age");

    System.out.println("HttpServletRequest(Object -> Primitive) : " + name + ", " + age);
}

@RequestParam

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

function requestParamSample() {
    let data = {
        "name" : "kidongyun",
        "age"  : 26
    }

    $.ajax({
        url:'/requestParamSample',
        type:'get',
        data: data,
        success:function(){

        }
    })
}

1
2
3
4
5
6

@RequestMapping(value = "/requestParamSample")
public void requestParamSample(@RequestParam String name, @RequestParam int age) {
    System.out.println("RequestParam(Object -> Primitive) : " + name + ", " + age);
}

@RequestBody Map

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

function requestBodyMapTypeSample() {
    let data = {
        "name" : "kidongyun",
        "age"  : 26
    }

    $.ajax({
        url:'/requestBodyMapTypeSample',
        type:'post',
        contentType: 'application/json',
        data: JSON.stringify(data),
        success:function(){

        }
    })
}

1
2
3
4
5
6

@RequestMapping(value = "/requestBodyMapTypeSample")
public void requestBodyMapTypeSample(@RequestBody Map<String, Object> param) {
    System.out.println("RequestBody(Json -> Map) : " + param.get("name") + ", " + param.get("age"));
}

@RequestBody VO

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

function requestBodyVOTypeSample() {
    let data = {
        "name" : "kidongyun",
        "age"  : 26
    }

    $.ajax({
        url:'/requestBodyVOTypeSample',
        type:'post',
        contentType: 'application/json',
        data: JSON.stringify(data),
        success:function(){

        }
    })
}

1
2
3
4
5
6

@RequestMapping(value = "/requestBodyVOTypeSample")
public void requestBodyVOTypeSample(@RequestBody Human human) {
    System.out.println("RequestBody(Json -> VO) : " + human.getName() + ", " + human.getAge());
}

ModelAndView

1
2
3
4
5
6
7
8
9
10
11
12

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>ModelAndViewSamplePage</title>
</head>
<body>
    ${name}
    ${age}
</body>
</html>

1
2
3
4
5
6
7
8
9
10
11
12

@RequestMapping(value = "/modelAndViewSample")
public ModelAndView modelAndViewSample() {
    ModelAndView view = new ModelAndView();

    view.addObject("name", "kidongyun");
    view.addObject("age", 26);
    view.setViewName("/modelAndViewSamplePage");

    return view;
}

ViewResolver

1
2
3
4
5
6
7
8
9
10
11

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>ViewResolverSample</title>
</head>
<body>
    ViewResolverSample
</body>
</html>

1
2
3
4
5
6

@RequestMapping(value = "/viewResolverSample")
public String viewResolverSample() {
    return "viewResolverSample";
}

HttpServletResponse

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

@RequestMapping(value = "/httpServletResponseSample")
public void httpServletResponseSample(HttpServletResponse response) throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();

    out.println("<html>");
    out.println("<head><title>httpServletResponseSample</title></head>");
    out.println("<body>");
    out.println("name : kidongyun");
    out.println("age : 26");
    out.println("</body>");
    out.println("</html>");
}

@ResponseBody

1
2
3
4
5
6
7
8
9
10
11

function responseBodyStringTypeSample() {
    $.ajax({
        url:'/responseBodyStringTypeSample',
        type:'get',
        success:function(data){
            console.log(data);
        }
    })
}

1
2
3
4
5
6
7

@ResponseBody
@RequestMapping(value = "/responseBodyStringTypeSample")
public String responseBodyStringTypeSample() {
    return "It's plain String Type";
}

Share