SpringMVC+Volley实现Android端上传文件

Android端使用的是Volley的Request基类，实现它的几个方法，以拼接表单的方式来上传文件

服务器端则是采用Spring框架来接收文件。

一、Android：三个类：MainActivity，PostRequest，UploadFileRequest.

1.PostRequest继承自Request<String>,实现它的deliverResponse和parseNetworkResponse以及getParams三个方法，

构造函数为

public PostRequest(String url,Map<String,String>params, ResponseListener listener){...}

2.UploadFileRequest继承自PostRequest，实现其getBody()和getBodyContentType()方法，getBody来拼接表单数据，getBodyContentType用来返回表单类型：

return "multipart/form-data;boundary=------8d74g45h";
构造函数为

public UploadFileRequest(String url, List<FileForm>fileList, ResponseListener listener){...}
3.在MainActivity中调用UploadFileRequest，并添加到Volley队列中。
<pre name="code" class="java">uploadFileRequest = new UploadFileRequest(url, fileForms, new ResponseListener() {    @Override    public void onErrorResponse(VolleyError volleyError) {        Toast.makeText(MainActivity.this, "上传失败", Toast.LENGTH_SHORT).show();    }    @Override    public void onResponse(Object o) {        Toast.makeText(MainActivity.this, "上传成功", Toast.LENGTH_SHORT).show();    }});Volley.newRequestQueue(MainActivity.this).add(uploadFileRequest);

二、服务器端：
@Controllerpublic class UploadController {    @RequestMapping("uploadImage")    //@ResponseBody    public void addImage(HttpServletRequest request) throws IllegalStateException, IOException{        MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;        MultipartFile file = multipartHttpServletRequest.getFile("uploadfile");        if(!file.getOriginalFilename()==null){            File targetFile = new File("F:/789.png");            file.transferTo(targetFile);        }    }

使用MultipartHttpServletRequest 的时候要记得在spring配置文件中添加Multipart的解析器：

@Controllerpublic class UploadController {    @RequestMapping("uploadImage")    //@ResponseBody    public void addImage(HttpServletRequest request) throws IllegalStateException, IOException{        MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;        MultipartFile file = multipartHttpServletRequest.getFile("uploadfile");        if(!file.getOriginalFilename()==null){            File targetFile = new File("F:/789.png");            file.transferTo(targetFile);        }    }

这样就完成了文件上传的操作。
参考：
1.Spring文件上传处理：http://amcucn.iteye.com/blog/264457
2.Volley文件上传操作：http://blog.csdn.net/jxxfzgy/article/details/44064481