android客户端发送XML数据至服务器

使用android发送XML数据

服务器端：

1.用一个servlet来接收android客户端的请求。

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import cn.kafei.utils.StreamTool;

@WebServlet("/XmlServlet")
public class XmlServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
}

protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
//通过request的getInputStream方法可以获得android客户端发送的XML数据流
byte[] data = StreamTool.read(request.getInputStream());
String xml = new String(data, "UTF-8");
System.out.println(xml);
}
}

2.读取流中的数据：

/**
* 读取流中的数据
*/
public static byte[] read(InputStream inputStream) throws IOException {
ByteArrayOutputStream outputStream=new ByteArrayOutputStream();
byte[] b=new byte[1024];
int len=0;
while((len=inputStream.read(b))!=-1){
outputStream.write(b,0,len);
}
inputStream.close();
return outputStream.toByteArray();
}

android客户端：

1.首先准备一个提供测试的XML文件（city.xml），放在src目录下：

<?xml version="1.0" encoding="UTF-8"?>
<citys>
<china id="0">
<city>兰州</city>
<province>甘肃</province>
</china>
<china id="1">
<city>庆阳</city>
<province>甘肃</province>
</china>
</citys>

2.编写发送的业务逻辑：

public void testSendXML() throws Exception {
// 向服务器发送实体数据
InputStream inStream = this.getClass().getClassLoader()
.getResourceAsStream("city.xml");//加载本地XML文件
byte[] data = StreamTool.read(inStream);//获得文件的字节数组
String path = "http://192.168.1.100:8080/web/XmlServlet";//发送路径
HttpURLConnection conn = (HttpURLConnection) new URL(path)
.openConnection();
conn.setConnectTimeout(5000);
conn.setRequestMethod("POST");//以PSOT方式进行提交
conn.setDoOutput(true);//允许输出数据
conn.setRequestProperty("Content-Type", "text/xml; charset=UTF-8");//设置发送的文件类型
conn.setRequestProperty("Content-Length", String.valueOf(data.length));//设置发送文件的长度
conn.getOutputStream().write(data);//些人输出流中
//判断是否发送成功，只有调用了getResponseCode方法才真正的实现发送的动作
if (conn.getResponseCode() == 200) {
System.out.println("发送成功");
} else {
System.out.println("发送失败");
}
}

至此android客户端向服务器发送XML数据就已完成。欢迎大家进行交流