HttpClient发送Post请求,内容格式为xml,并获取响应内容
ChannelDistributor.xml内容如下：
<?xmlversion="1.0"encoding="UTF-8"?>
<request>
<userName>yisou</userName>
<pwd>abcd1234</pwd>
<channelCode>10010000</channelCode>
<insertType>00</insertType>
</request>
1).HttpClient发送Post请求,内容格式为xml,并获取响应内容
importjava.io.BufferedInputStream;
importjava.io.BufferedReader;
importjava.io.ByteArrayOutputStream;
importjava.io.FileNotFoundException;
importjava.io.IOException;
importjava.io.InputStream;
importjava.io.InputStreamReader;
importjavax.servlet.ServletException;
importjavax.servlet.http.HttpServlet;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
importorg.apache.commons.httpclient.HttpClient;
importorg.apache.commons.httpclient.HttpStatus;
importorg.apache.commons.httpclient.methods.PostMethod;
importorg.apache.commons.httpclient.methods.StringRequestEntity;
importorg.apache.log4j.Logger;
publicclassServiceValidateextendsHttpServlet{
privateLoggerlog=Logger.getLogger(ServiceValidate.class);
privatestaticfinallongserialVersionUID=-6995391540735187530L;
@Override
protectedvoiddoGet(HttpServletRequestreq,HttpServletResponseresp)
throwsServletException,IOException{
this.doPost(req,resp);
}
/**
*发送xml数据请求到服务器端
*@paramurlxml请求数据地址
*@paramxmlString发送的xml数据流
*@returnnull发送失败，否则返回响应内容
*/
@Override
protectedvoiddoPost(HttpServletRequestreq,HttpServletResponseresp)
throwsServletException,IOException{
System.setProperty("org.apache.commons.logging.Log","org.apache.commons.logging.impl.SimpleLog");
System.setProperty("org.apache.commons.logging.simplelog.showdatetime","true");
System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.commons.httpclient","stdout");
Stringurl="http://localhost:8080/game/testServlet";
StringxmlString=getXmlString();
HttpClientclient=newHttpClient();
PostMethodmyPost=newPostMethod(url);
client.getParams().setSoTimeout(300*1000);
StringresponseString=null;
try{
myPost.setRequestEntity(newStringRequestEntity(xmlString,"text/xml","utf-8"));
intstatusCode=client.executeMethod(myPost);
if(statusCode==HttpStatus.SC_OK){
BufferedInputStreambis=newBufferedInputStream(myPost.getResponseBodyAsStream());
byte[]bytes=newbyte[1024];
ByteArrayOutputStreambos=newByteArrayOutputStream();
intcount=0;
while((count=bis.read(bytes))!=-1){
bos.write(bytes,0,count);
}
byte[]strByte=bos.toByteArray();
responseString=newString(strByte,0,strByte.length,"utf-8");
bos.close();
bis.close();
}
}catch(Exceptione){
log.error(e.getMessage(),e);
}
myPost.releaseConnection();
client.getHttpConnectionManager().closeIdleConnections(0);
System.out.println("responseString:"+responseString);
}
/**
*读取xml内容,将请求的xml
*保存成字符串进行post发送
*@return
*/
privateStringgetXmlString(){
StringBuildersb=newStringBuilder();
try{
InputStreaminputStream=ServiceValidate.class.getResourceAsStream("/ChannelDistributor.xml");
BufferedReaderbr=newBufferedReader(newInputStreamReader(inputStream));
Stringline="";
for(line=br.readLine();line!=null;line=br.readLine()){
sb.append(line+"\n");
}
}catch(FileNotFoundExceptione){
log.error(e.getMessage(),e);
}catch(IOExceptione){
log.error(e.getMessage(),e);
}
returnsb.toString();
}
@Override
protectedvoiddoPut(HttpServletRequestreq,HttpServletResponseresp)
throwsServletException,IOException{
this.doPost(req,resp);
}
}
2).获取HttpClientPost请求数据并响应内容
importorg.apache.log4j.Logger;
publicclassTestServletextendsHttpServlet{
privatestaticfinallongserialVersionUID=-6175353394519367540L;
privateLoggerlog=Logger.getLogger(TestServlet.class);
@Override
protectedvoiddoGet(HttpServletRequestreq,HttpServletResponseresp)
throwsServletException,IOException{
this.doPost(req,resp);
}
@Override
protectedvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)
throwsServletException,IOException{
try{
intlen=request.getContentLength();
System.out.println("数据流长度:"+len);
//获取HTTP请求的输入流
InputStreamis=request.getInputStream();
//已HTTP请求输入流建立一个BufferedReader对象
BufferedReaderbr=newBufferedReader(newInputStreamReader(is,"UTF-8"));
//读取HTTP请求内容
Stringbuffer=null;
StringBuffersb=newStringBuffer();
while((buffer=br.readLine())!=null){
//在页面中显示读取到的请求参数
sb.append(buffer+"\n");
}
System.out.println("接收post发送数据:\n"+sb.toString().trim());
PrintWriterout=response.getWriter();
StringBufferstringBuffer=newStringBuffer("<?xmlversion=\"1.0\"encoding=\"UTF-8\"?>");
stringBuffer.append("<response>");
stringBuffer.append("<status>800</status>");
stringBuffer.append("<tokenPwd>jkuiowerncxuidafjkfdaouifdaljkn</tokenPwd>");
stringBuffer.append("</response>");
out.write(stringBuffer.toString());
out.flush();
out.close();
}catch(Exceptione){
log.error(e.getMessage(),e);
}
}
}
控制台输出如下：
数据流长度:175
接收post发送数据:
<?xmlversion="1.0"encoding="UTF-8"?>
<request>
<userName>yisou</userName>
<pwd>abcd1234</pwd>
<channelCode>10010000</channelCode>
<insertType>00</insertType>
</request>
responseString:<?xmlversion="1.0"encoding="UTF-8"?><response><status>800</status><tokenPwd>jkuiowerncxuidafjkfdaouifdaljkn</tokenPwd></response>