Android 文件上传

public void upload(View view){
    HttpClient client = new HttpClient();
     PostMethod filePost = new PostMethod("http://192.168.1.100:8080/web/UploadServlet");;
    try {
        String path = et_path.getText().toString().trim();
        File file = new File(path);
        if(file.exists()&&file.length()>0){
            Part[] parts = {new StringPart("nameaaaa", "valueaaa"), 
                  new StringPart("namebbb", "valuebbb"), 
                  new FilePart("pic", new File(file.getAbsolutePath()))};
          filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost.getParams()));
          client.getHttpConnectionManager().getParams()
              .setConnectionTimeout(5000);
          int status = client.executeMethod(filePost);
          if(status ==200){
              Toast.makeText(this, "上传成功", 1).show();
          }else{
              Toast.makeText(this, "上传失败", 1).show();
          }
        }
        else{
            Toast.makeText(this, "上传的文件不存在", 0).show();
        }
    } catch (Exception e) {
        e.printStackTrace();
        /**如果出现异常一定记得要释放*/
        filePost.releaseConnection();
    }
}

模拟Http请求上传