@RequestMapping(value = "anemd/{id}" , method = RequestMethod.GET)
    public String anemd(@PathVariable("id")Integer id ,Map<String, Object> map){ 
        List<String> sexlist = Arrays.asList("男","女");
        List<Integer> agelist = Arrays.asList(12,13,14,15,16,17,18,19,20);
        map.put(
 
"sexlist", sexlist);
        map.put("agelist", agelist);
　　　　　//用id獲取資料
        map.put("user", userService.selectUserId(id));
        return "anemd";
    }
    
    @RequestMapping(value = "../anemd" , method = RequestMethod.POST)
    public String anemd(User user){
　　　　//檢視修改後的值
        System.out.println(user);
        
        
 
return "redirect:hello";
    }

這是修改例項的controller中的修改

下方是HTML中的程式碼

<h1>修改使用者資訊</h1>
        <form:form action="anemd" commandName="user" method="post">
                <form:hidden path="id"/>
            名字:<form:input path="name"/><br/>
            性別:<form:radiobuttons 
 
path="sex" items="${sexlist }"/><br/>
            年齡:<form:radiobuttons path="age" items="${agelist }"/><br/>
            郵箱:<form:input path="email"/><br/>
            <input  type="submit" value="修改" />
        </form:form>

就算加上../也沒什麼作用？？

經過修改後：

<h1>修改使用者資訊</h1>
        <form:form action="${pageContext.request.contextPath }/anemd" commandName="user" method="post">
                <form:hidden path="id"/>
            名字:<form:input path="name"/><br/>
            性別:<form:radiobuttons path="sex" items="${sexlist }"/><br/>
            年齡:<form:radiobuttons path="age" items="${agelist }"/><br/>
            郵箱:<form:input path="email"/><br/>
            <input  type="submit" value="修改" />
        </form:form>