【转】传统的SpringMvc项目如何使用ajax发送PUT或DELETE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>

$.ajax({
    url:"${pageContext.request.contextPath}/emp/" + id,
    type:"POST",
    data:$("#empModal form").serialize() + "&_method=PUT",
    success:function (result) {
        // 请求成功后的回调函数
    }
});

$.ajax({
    url:"${pageContext.request.contextPath}/emp/" + id,
    type:"POST",
    data:$("#empModal form").serialize() + "&_method=DELETE",
    success:function (result) {
        // 请求成功后的回调函数
    }
});

<filter>
    <filter-name>httpPutFormContentFilter</filter-name>
    <filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>httpPutFormContentFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

$.ajax({
    url:"${pageContext.request.contextPath}/emp/" + id,
    type:"PUT",
    data:$("#empModal form").serialize(),
    success:function (result) {
        // 请求成功后的回调函数
    }
});

$.ajax({
    url:"${pageContext.request.contextPath}/emp/" + id,
    type:"DELETE",
    data:$("#empModal form").serialize(),
    success:function (result) {
        // 请求成功后的回调函数
    }
});