@Controller
@RequestMapping("/springmvc")
public class SpringMVCController {
   @RequestMapping(value="/testMethord",method=RequestMethod.POST)
   public String testMethord(){
       System.out.println("testMethord...");
       return "success";
   }
}

get方式請求:
<a href="springmvc/testMethord">testMethord</a><br/><br/>
post 方式請求：
<form action="springmvc/testMethord" method="post">
     <input type="submit" value="submit">
</form>
 

/*
可以使用 params 和 headers 來更加精確的對映請求. params 和 headers 支援簡單的表示式.
*/
@RequestMapping(value="/testParamsAndHeaders",
    params={params={"username","age!=10"},
    headers = { "Accept-Language=en-US,zh;q=0.8" })
  public String testParamsAndHeaders(){
    System.out.println("testParamsAndHeaders...");
    return "success";
  }

<!--設定請求引數和請求頭資訊 -->
<a href="springmvc/testParamsAndHeaders">testParamsAndHeaders</a>

//方法僅處理request Content-Type為“application/json”型別的請求。
@Controller 
@RequestMapping(value = "/pets", method = RequestMethod.POST, consumes="application/json") 
public void addPet(@RequestBody Pet pet, Model model) {     
    // implementation omitted 
} 

//方法僅處理request請求中Accept頭中包含了"application/json"的請求，同時暗示了返回的內容型別為application/json;
@Controller 
@RequestMapping(value = "/pets/{petId}", method = RequestMethod.GET, produces="application/json") 
@ResponseBody 
public Pet getPet(@PathVariable String petId, Model model) {     
    // implementation omitted 
}

①定義控制器方法
/*
 @PathVariable 註解可以將請求URL路徑中的請求引數，傳遞到處理請求方法的入參中
*/
@RequestMapping(value="/testPathVariable/{id}")
public String testPathVariable(@PathVariable("id") Integer id){
   System.out.println("testPathVariable...id="+id);
   return "success";
}

②請求連結
<!-- 測試 @PathVariable -->
<a href="springmvc/testPathVariable/1">testPathVariable</a><br/><br/>

@RequestMapping(value="/testRequestParam")
public String RequestParam(
      @RequestParam(value="username") String username,
      @RequestParam(value="age",required=false,defaultValue="0") Integer age
      ){
  System.out.println("username="+username+"----"+"age="+age);
return "success";
}

<a href="springmvc/testRequestParam?username=tom&age=10">testRequestParam</a>

@RequestMapping(value="/testRequestHeader")
public String testRequestHeader(@RequestHeader(value="Accept-Language") String abc){
     System.out.println("testRequestHeader - Accept-Language："+abc);
     return "success";
}

<a href="springmvc/testRequestHeader">testRequestHeader</a>

@RequestMapping("/testCookieValue")
public String testCookieValue(@CookieValue("JSESSIONID") String sessionId) {
     System.out.println("testCookieValue: sessionId: " + sessionId);
     return "success";
}

<a href="springmvc/testCookieValue">testCookieValue</a>

@RequestMapping("/testPOJO")
public void testPOJO(User user){
  System.out.println(user);
  return "success";
}

<!-- 測試pojo物件傳參，支援級聯屬性 -->
<form action="springmvc/testPOJO" method="post">
     username：<input type="text" name="username"/><br>
     password:<input type="password" name="password"><br>
     email:<input type="text" name="email"/><br>
     age:<input type="text" name="age"/><br>
     city:<input type="text" name="address.city"/><br>
     province:<input type="text" name="address.province"/>
     <input type="submit" value="提交"/>
</form>

<!--  配置字符集,解決中文亂碼問題 -->
        <filter>
               <filter-name> encodingFilter</filter-name >
               <filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class>
               <init-param>
                      <param-name> encoding</param-name >
                      <param-value> UTF-8</param-value >
               </init-param>
               <init-param>
                      <param-name> forceEncoding</param-name >
                      <param-value> true</param-value >
               </init-param>
        </filter>
        <filter-mapping>
               <filter-name> encodingFilter</filter-name >
               <url-pattern> /*</url-pattern >
        </filter-mapping>

// 目標方法的返回型別可以是ModelAndView型別,其中包含檢視資訊和模型資料資訊.
@RequestMapping("/testModelAndView")
public ModelAndView testModelAndView(){
     System.out.println("testModelAndView");
     String viewName = "success";
     ModelAndView mv = new ModelAndView(viewName );
     mv.addObject("time",new Date().toString()); //實質上存放到request域中
     return mv;
}

<!--測試 ModelAndView 作為處理返回結果 -->
<a href="springmvc/testModelAndView">testModelAndView</a>

time: ${requestScope.time }

// 目標方法的返回型別也可以是一個Map型別引數
@RequestMapping("testMap")
public String testMap(Map<String,Object> map){
    System.out.println(map.getClass().getName());
    //org.springframework.validation.support.BindingAwareModelMap
    map.put("names", Arrays.asList("Tom","Jerry","Kite"));
    return "success";
}

<!-- 測試 Map 作為處理返回結果 -->
<a href="springmvc/testMap">testMap</a>

names: ${requestScope.names }

@Controller
//@SessionAttributes("user")
@SessionAttributes(value={"user"},types={String.class})
public class SpringMVCController {
    /**
    * @SessionAttributes
    *  除了可以通過屬性名指定需要放到會話中的屬性外(實際上是通過value指定key值)，
    *  還可以通過模型屬性的物件型別指定哪些模型屬性需要放到會話中(實際上是通過types指定型別)
    * 注意：只能放在類的上面，不能修飾方法
    */
    @RequestMapping("/testSessionAttributes")
    public String testSessionAttributes(Map<String,Object> map){
    User user = new User(null,"Tom","123","[email protected]",22);
    map.put("user", user);
    map.put("school", "清華大學");
    //預設是被存放到request 域，如果設定了@SessionAttribute註解，就同時存放到session域中
    return "success";
    }
}

<!--測試 @SessionAttribute 將資料存放到session域中 -->
<a href="testSessionAttributes">testSessionAttributes</a>
request user : ${requestScope.user } <br><br>
session user : ${sessionScope.user } <br><br>
request school : ${requestScope.school } <br><br>
session school : ${sessionScope.school } <br><br>

<!--測試 @ModelAttribute 類似Struts2框架的模型驅動 -->
<!--
    模擬修改操作：
    1.原始資料為：1,Tom,123456,[email protected],12
    2.密碼不需要修改
    3.表單回顯，模擬操作直接在表單value屬性上賦值
-->
<form action="springmvc/testModelAttribute" method="POST">
    <input type="hidden" name="id" value="1"><br>
    username: <input type="text" name="username" value="Tom"/>
    email: <input type="text" name="email" value="[email protected]"/>
    age: <input type="text" name="age" value="12"/>
    <input type="submit" value="Submit"/>
</form>

// 由 @ModelAttribute 標記的方法(getUser), 會在每個目標方法(testModelAttribute)執行之前被 SpringMVC 呼叫!
@RequestMapping("/testModelAttribute")
public String testModelAttribute(User user){
    System.out.println("user="+user);
    return "success";
}

@ModelAttribute
public void getUser(@RequestParam(value="id",required=false) Integer id,Map<String,Object> map){
    if(id!=null){
    //模擬從資料庫中獲取到的user物件
    User user = new User(1,"Tom","123456","[email protected]",12);
    System.out.println("從資料庫中查詢的物件：user="+user );
    map.put("user", user);
    }
}