Servlet 3.0从android将gzip读取为多部分

Servlet 3.0从android将gzip读取为多部分,android,gzip,multipart,servlet-3.0,Android,Gzip,Multipart,Servlet 3.0,如果数据是作为gzip发送的,如何将发送到服务器的数据直接读入部分? 下面是将文件上传到服务器的基本android代码 private void sendViaUrlConnection(String urlPost, ArrayList<BasicNameValuePair> pairList, File[] sentfileList) { HttpURLConnection connection = null; GZIPOutputStream g

如果数据是作为gzip发送的,如何将发送到服务器的数据直接读入部分? 下面是将文件上传到服务器的基本android代码

private void sendViaUrlConnection(String urlPost,
        ArrayList<BasicNameValuePair> pairList, File[] sentfileList) {
    HttpURLConnection connection = null;
    GZIPOutputStream gz = null;
    DataOutputStream outputStream = null;
    OutputStream serverOutputStream = null;
    try {
        URL url = new URL(urlPost);
        connection = (HttpURLConnection) url.openConnection();
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setUseCaches(false);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Connection", "Keep-Alive");
        connection.setRequestProperty("User-Agent",
            "Android Multipart HTTP Client 1.0");
        connection.setRequestProperty("Content-Type",
            "multipart/form-data; boundary=" + boundary);
        connection.setRequestProperty("accept-encoding", "gzip,deflate");
        connection.setRequestProperty("accept","text/html,application/xhtml"
                    + "+xml,application/xml;q=0.9,*/*;q=0.8");
        if (isServerGzip) {
            connection.setRequestProperty("Content-Encoding", "gzip");
            gz = new GZIPOutputStream(connection.getOutputStream());
            serverOutputStream = gz;
        } else {
            outputStream = new DataOutputStream(
                    connection.getOutputStream());
            serverOutputStream = outputStream;
        }
        getMultiPartData(pairList, sentfileList, serverOutputStream,
            boundary);
        serverResponseCode = connection.getResponseCode();
    } finally {}
}  
private void sendViaUrlConnection(字符串urlPost,
ArrayList pairList,文件[]sentfileList){
HttpURLConnection=null;
GZIPOutputStream gz=null;
DataOutputStream outputStream=null;
OutputStream服务器OutputStream=null;
试一试{
URL=新URL(urlPost);
connection=(HttpURLConnection)url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(真);
connection.setUseCaches(false);
connection.setRequestMethod(“POST”);
setRequestProperty(“连接”,“保持活动”);
connection.setRequestProperty(“用户代理”,
“Android多部分HTTP客户端1.0”);
connection.setRequestProperty(“内容类型”,
“多部分/表单数据;边界=”+边界);
setRequestProperty(“接受编码”、“gzip、deflate”);
setRequestProperty(“接受”、“文本/html、应用程序/xhtml”
+“+xml,application/xml;q=0.9,*/*;q=0.8”);
if(isServerGzip){
setRequestProperty(“内容编码”、“gzip”);
gz=newgzipoutputstream(connection.getOutputStream());
serverOutputStream=gz;
}否则{
outputStream=新的DataOutputStream(
connection.getOutputStream());
serverOutputStream=outputStream;
}
getMultiPartData(pairList、sentfileList、serverOutputStream、,
边界);
serverResponseCode=connection.getResponseCode();
}最后{}
}  
如果isServerGzip为false,则servlet会很好地获取数据,但是如果我尝试发送一个gziOutputStream,则servlet中的getParts()函数会返回一个空列表。 以下是servlet的代码:

@WebServlet("/AddInfo.jsp")
@MultipartConfig()
public class AddInfo extends HttpServlet {

    private static final long serialVersionUID = 1L;

    protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        Collection<Part> parts = request.getParts();
        for (Part part : parts) {
            // Do something with each part
        }
    }
}
@WebServlet(“/AddInfo.jsp”)
@MultipartConfig()
公共类AddInfo扩展了HttpServlet{
私有静态最终长serialVersionUID=1L;
受保护的void doPost(HttpServletRequest请求,
HttpServletResponse响应)引发ServletException,IOException{
response.setContentType(“text/html”);
Collection parts=request.getParts();
用于(零件:零件){
//对每个部分都做些什么
}
}
}
我怀疑(在看到您的
getMultiPartData()
之前无法确定)您正在将多部分头传递到
GZIPOutputStream
中,例如:

writer.append("--" + boundary).append(CRLF);
writer.append(
        "Content-Disposition: form-data; name=\"binaryFile\"; filename=\""
            + file.getName() + "\"").append(CRLF);
writer.append(
        "Content-Type: "
            + ((isServerGzip) ? "application/gzip" : URLConnection
                    .guessContentTypeFromName(file.getName())))
            .append(CRLF);

有关管理发送数据的类,请参见我的问题。注意,我将连接的输出流包装在GZIPOutputStream中,但我没有在GZIPOutputStream中写入多部分头