springMVC+jersey实现跨服务器文件上传

1.首先添加所需要的jar包

   

 


2.在springMVC的配置文件中添加文件上传解析器

<!-- 文件上传的解析器 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 文件上传大小的限制 -->
<property name="maxUploadSize" value="5000000"></property>
<property name="defaultEncoding" value="UTF-8"></property>
</bean>

3.jsp页面

<form id="fm" action="" method="post">
<p>
<img src="" alt="" id="imgSrc"/>
请上传头像：<input type="file" name="imgFile" id="imgFile" onchange="fileUpload();"/>
<input type="hidden" id="reletivePath" name="reletivePath" value="">
</p>
</form>

4.文件上传的 js

<!-- 文件上传js -->
<script type="text/javascript">
function fileUpload(){
var option = {
type:"POST",
url:"${pageContext.request.contextPath }/user/fileUpload.do",
data:{
fileName:"imgFile"
},
success:function(reData){
alert(reData.reletivePath);
$("#imgSrc").attr("height",100);
$("#imgSrc").attr("width",100);
$("#imgSrc").attr("src",reData.fullPath);
$("#reletivePath").val(reData.reletivePath);
},
dataType:"json"
};
$("#fm").ajaxSubmit(option);
}
</script>

5. controller

/*
* 文件上传
*/
@RequestMapping("fileUpload")
public @ResponseBody Map<String , String> fileUpload(HttpServletRequest request,String fileName){
System.out.println(111);
//1.将普通请求转换为多部件请求
MultipartHttpServletRequest mr = (MultipartHttpServletRequest)request;
//2.根据文件名获取文件对象
CommonsMultipartFile mf = (CommonsMultipartFile)mr.getFile(fileName);
//3.获取文件全名称
String originalFilename = mf.getOriginalFilename();
System.out.println("文件全名称"+originalFilename);
//4.获取后缀
String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));
System.out.println("后缀"+suffix);
//5.将文件对象转换为字节
byte[] fileBytes = mf.getBytes();
//6.获取新的随机文件名
String newFileName="";
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
int num = (int)(Math.random()*899)+100;
newFileName = sdf.format(new Date())+num;

System.out.println("新的随机文件名"+newFileName);
//开始上传
//1.创建jesy服务器
Client client = Client.create();
String fullPath = "http://localhost:8088/fileServiceProject/upload/"+newFileName+suffix;
//把文件关联到远程服务器
WebResource wr = client.resource(fullPath);
//2.相对路径
String reletivePath = "/upload/"+newFileName+suffix;
//3.上传
wr.put(String.class, fileBytes);
Map<String , String> map = new HashMap<String, String>();
map.put("fullPath", fullPath);
map.put("reletivePath", reletivePath);
return map;
}