HttpClient Post和Get请求实例+ 中文参数处理

转载自：http://starlight00.blog.163.com/blog/static/465183201210961537965/

package httpclient;
　　
　　import java.io.IOException;
　　import java.net.URLEncoder;
　　
　　import org.apache.commons.httpclient.HttpClient;
　　import org.apache.commons.httpclient.HttpMethod;
　　import org.apache.commons.httpclient.NameValuePair;
　　import org.apache.commons.httpclient.methods.GetMethod;
　　import org.apache.commons.httpclient.methods.PostMethod;
　　
　　public class HttpClientTest {
　　
　　 public static void main(String[] args) throws Exception{
　　 String url = "/webservices/DomesticAirline.asmx/getDomesticAirlinesTime";
　　 String host = "www.webxml.com.cn";
　　 String param = "startCity="+URLEncoder.encode("杭州", "utf-8")+"&lastCity=&theDate=&userID=";
　　 HttpClient httpClient = new HttpClient();
　　 httpClient.getHostConfiguration().setHost(host, 80, "http");
　　
　　 HttpMethod method = getMethod(url, param);
　　 //HttpMethod method = postMethod(url);
　　
　　 httpClient.executeMethod(method);
　　
　　 String response = method.getResponseBodyAsString();
　　 //String response = new String(method.getResponseBodyAsString().getBytes("ISO-8859-1"));
　　 System.out.println(response);
　　 }
　　
　　 private static HttpMethod getMethod(String url,String param) throws IOException{
　　 GetMethod get = new GetMethod(url+"?"+param);
　　 get.releaseConnection();
　　 return get;
　　 }
　　
　　 private static HttpMethod postMethod(String url) throws IOException{
　　 PostMethod post = new PostMethod(url);
　　 post.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=gbk");
　　 NameValuePair[] param = { new NameValuePair("startCity","杭州"),
　　 new NameValuePair("lastCity","沈阳"),
　　 new NameValuePair("userID",""),
　　 new NameValuePair("theDate","") } ;
　　 post.setRequestBody(param);
　　 post.releaseConnection();
　　 return post;
　　 }
　　}
　　package httpclient;
　　
　　import java.io.IOException;
　　import java.net.URLEncoder;
　　
　　import org.apache.commons.httpclient.HttpClient;
　　import org.apache.commons.httpclient.HttpMethod;
　　import org.apache.commons.httpclient.NameValuePair;
　　import org.apache.commons.httpclient.methods.GetMethod;
　　import org.apache.commons.httpclient.methods.PostMethod;
　　
　　public class HttpClientTest {
　　
　　public static void main(String[] args) throws Exception{
　　String url = "/webservices/DomesticAirline.asmx/getDomesticAirlinesTime";
　　String host = "www.webxml.com.cn";
　　String param = "startCity="+URLEncoder.encode("杭州", "utf-8")+"&lastCity=&theDate=&userID=";
　　HttpClient httpClient = new HttpClient();
　　httpClient.getHostConfiguration().setHost(host, 80, "http");
　　
　　HttpMethod method = getMethod(url, param);
　　//HttpMethod method = postMethod(url);
　　
　　httpClient.executeMethod(method);
　　
　　String response = method.getResponseBodyAsString();
　　//String response = new String(method.getResponseBodyAsString().getBytes("ISO-8859-1"));
　　System.out.println(response);
　　}
　　
　　private static HttpMethod getMethod(String url,String param) throws IOException{
　　GetMethod get = new GetMethod(url+"?"+param);
　　get.releaseConnection();
　　return get;
　　}
　　
　　private static HttpMethod postMethod(String url) throws IOException{
　　PostMethod post = new PostMethod(url);
　　post.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=gbk");
　　NameValuePair[] param = { new NameValuePair("startCity","杭州"),
　　new NameValuePair("lastCity","沈阳"),
　　new NameValuePair("userID",""),
　　new NameValuePair("theDate","")} ;
　　 post.setRequestBody(param);
　　 post.releaseConnection();
　　return post;
　　}
　　}
　　
　　
　　如果PostMethod提交的是中文字符，需要加上相应的编码格式：
　　post.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=gbk");
　　
　　如果GetMethod提交的参数有中文字符，需要先转换成utf-8格式：
　　URLEncoder.encode("杭州", "utf-8");

 

 

 

 

验证码：换一张

 

 

 

 

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<script type="text/javascript"></script><script type="text/javascript"></script>

 

 public static String getJsonData(String url, String data) throws Exception{ Integer statusCode = -1;
// Create HttpClient Object
DefaultHttpClient client = new DefaultHttpClient();
// Send data by post method in HTTP protocol,use HttpPost instead of
// PostMethod which was occurred in former version
HttpPost post = new HttpPost(url);
// Construct a string entity
StringEntity entity = new StringEntity(data,"UTF-8");
entity.setContentType("application/json;charset=UTF-8");
// Set XML entity
post.setEntity(entity);
// Set content type of request header
post.setHeader("accept", "application/json");
post.setHeader("Content-Type", "application/json;charset=UTF-8");
// Execute request and get the response
HttpResponse response = client.execute(post);

// Response Header -StatusLine - status code
statusCode = response.getStatusLine().getStatusCode(); if (statusCode != HttpStatus.SC_OK) {
throw new HttpException("Http Status is error."); HttpEntity entityRsp = response.getEntity();
StringBuffer result = new StringBuffer();
BufferedReader rd = new BufferedReader(new InputStreamReader(entityRsp
.getContent(), HTTP.UTF_8));
String tempLine = rd.readLine();
while (tempLine != null) {
result.append(tempLine);
tempLine = rd.readLine();
}

if (entityRsp != null) {
entityRsp.consumeContent(); return result.toString();