SpringMVC——将Get和Post请求转为Delete和Put请求

一、在web.xml文件中配置过滤器org.springframework.web.filter.HiddenHttpMethodFilter

<!-- 配置 HiddenHttpMethodFilter: 把 POST 请求转为 DELETE、PUT 请求 -->
    <filter>
        <filter-name>HiddenHttpMethodFilter</filter-name>
        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>HiddenHttpMethodFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

二、将Get请求转为Delete请求

对于putdelete请求的时候使用post方式请求,同时增加一个参数_method=delete,定义实际的请求方式

前端代码:

<!--一个删除链接,为get请求-->
<a class="delete" href="emp/${emp.id}">Delete</a>
<!--利用js,将get请求转为DELETE请求-->
<script type="text/javascript">
        $(function() {
            alert("hello");
            $(".delete").click(function(){
                var href=$(this).attr("href");
                $("form").attr("action",href).submit();
                return false;
            });
        });
    </script>
<!--DELETE请求细节-->
<form action="" method="POST">
        <input type="hidden" name="_method" value="DELETE" >
</form>

 后端代码:

<!--接收DELETE请求的细节-->
@RequestMapping(value="/emp/{id}",method=RequestMethod.DELETE)
public String delete(@PathVariable("id") Integer id){
        System.out.print(employeeDao.delete(id));
        return "redirect:/emps";
}

三、Post请求转为Put请求

前端代码:

    <form:form action="${pageContext.request.contextPath}/emp" method="POST" 
        modelAttribute="employee"><br>
        <c:if test="${employee.id == null }">
            <!-- path 属性对应 html 表单标签的 name 属性值 -->
            LastName: <form:input path="lastName"/>
            <form:errors path="lastName"></form:errors>
        </c:if>
        <c:if test="${employee.id != null }">
            <form:hidden path="id"/>
            <!-- 将POST请求转化为PUT请求 -->
            <input type="hidden" name="_method" value="PUT"/>
        </c:if>
        <br>
        Email: <form:input path="email"/>
        <input type="submit" value="Submit"/>
    </form:form>

后端将method=RequestMethod.PUT

posted @ 2020-11-19 17:05  Arbitrary233  阅读(460)  评论(0编辑  收藏  举报