如何解码百分位编码字节[]

时间:2014-07-29 08:34:01

标签: java python rest post url-encoding

我使用post方法将一个字节流发送到其余服务,如下所示:

h = httplib2.Http(".cache")
h.add_credentials("admin","admin")

data = urllib.urlencode({"packet":str(pack)})
resp, content = h.request(url, "POST", data)

后调用结果使用%data编码)对字节流进行编码。现在我想要检索原始字节流。我在休息服务端(java)尝试了以下方式,但我无法检索原始字节流。

String pack_decode = java.net.URLDecoder.decode(packet, "UTF-8");
// I am expecting decoded byte stream (free from `%` encoding) but I am getting the same encoded string.

1 个答案:

答案 0 :(得分:0)

你能发布完整的源代码吗?看来这应该有用,至少接下来工作正常:

客户端(Python):

# -*- coding: utf-8 -*-

import httplib2
import urllib

url = 'http://127.0.0.1:8000/test'
h = httplib2.Http(".cache")
pack = 'Источники в Кремле: вердикт Гааги по ЮКОСу не важен, потому что грядет война в Европе'
data = urllib.urlencode({"packet":str(pack)})
resp, content = h.request(url, "POST", data)

服务器(Java):

package com.example;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

public class Server {

    public static void main(String[] args) throws Exception {
        HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
        server.createContext("/test", new Handler());
        server.setExecutor(null);
        server.start();
    }

    static class Handler implements HttpHandler {
        public void handle(HttpExchange t) throws IOException {

            InputStreamReader isr =  new InputStreamReader(t.getRequestBody(),"utf-8");
            BufferedReader br = new BufferedReader(isr);

            int b;
            StringBuilder buf = new StringBuilder(512);
            while ((b = br.read()) != -1) {
                buf.append((char) b);
            }

            br.close();
            isr.close();

            System.out.println("Encoded msg: \n" + buf); 

            String pack_decode = java.net.URLDecoder.decode(buf.toString(), "UTF-8");
            System.out.println("Decoded msg: " + pack_decode); 

        }
    }

}

服务器端的输出:

编码:

包=%D0%98%D1%81%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D0%BA%D0%B8 +%D0%B2 +%D0%9A% D1%80%D0%B5%D0%BC%D0%BB%D0%B5%3A +%D0%B2%D0%B5%D1%80%D0%B4%D0%B8%D0%BA%D1%82 + %D0%93%D0%B0%D0%B0%D0%B3%D0%B8 +%D0%BF%D0%BE +%D0%AE%D0%9A%D0%9E%D0%A1%D1%83 +% D0%BD%D0%B5 +%D0%B2%D0%B0%D0%B6%D0%B5%D0%BD%2C +%D0%BF%D0%BE%D1%82%D0%BE%D0%BC% D1%83 +%D1%87%D1%82%D0%BE +%D0%B3%D1%80%D1%8F%D0%B4%D0%B5%D1%82 +%D0%B2%D0%BE% D0%B9%D0%BD%D0%B0 +%D0%B2 +%D0%95%D0%B2%D1%80%D0%BE%D0%BF%D0%B5

解码:

packet =ИсточникивКремле:вердиктГаагипоЮКОСуневажен,потомучтогрядетвойнавЕвропе