serializeJSON（postMan中使用json形式）

serializeJSON教程

cdn

<%--seralizeJson--%>
<script src="https://cdn.bootcss.com/jquery.serializeJSON/2.8.1/jquery.serializejson.js"></script>

javascript

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        $.ajax({
                url:"newTopic",
                dataType: "json",
                contentType:"application/json;charset=UTF-8",
                type:"post",
                data:JSON.stringify($('#topicForm').serializeJSON())  ,
                beforeSend:function(){
                    $("#sendBtn").text("釋出中").attr("disabled","disabled");
                },
                success:function(json){
                    if(json.status == "success"){
                        window.location.href="/topicDetail?topicid="+json.data.id;
                    }else {
                        swal("新增主題異常");
                    }
                },
                error:function(){
                    swal("伺服器異常");
                },
                complete:function () {
                    $("#sendBtn").text("釋出主題").removeAttr("disabled");
                }

            })

控制器

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