前端代码

<form method="post" enctype="multipart/form-data" id="cooperatorIdentityBackPhotoForm">

<label class="Con_Label">法人身份证反面</label>

<div class="Con_Input">

<input type="file" id="IdDn" class="file" size="1"

οnchange="FileValue(this.id)" name="cooperatorIdentityBackPhoto"> <input type="button"

id="IdDn1" value="浏览" class="file_button" name="cooperatorIdentityBackPhoto"/>

<input type="button" value="上传" class="file_button2" id="uploadCooperatorIdentityBackPhoto">

</div></form>

<script>

$("#cooperatorIdentityBackPhotoForm").ajaxSubmit({

url: "<c:url value='/uploadCooperatorIdentityBackPhoto'/>",

dataType: "json",//指定格式

success: function(data) {

if(data.success){

}else{

alert(data.msg);

}

},

error: function() {

alert("上传失败，请重新上传！");

},

});

</script>

后台代码

//用的是import com.fasterxml.jackson.databind.ObjectMapper;

 

@RequestMapping(value = "/uploadCooperatorBussessPhoto", method = RequestMethod.POST, produces = "text/html; charset=UTF-8")//指定返回格式

@ResponseBody

public String uploadInspectorIdentityNoPhoto(

@RequestPart("cooperatorBussessPhoto") MultipartFile cooperatorBussessPhoto)

throws IOException {

Map<String, Object> map = new HashMap<String, Object>();

map.put("url", "success");

return mapper.writeValueAsString(map);//将map对象转为json

}