使用httpclient 连接 restful webservices实例 绝对可用 get的--post

package org.glassfish.jersey.examples.httpclient;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

public class ApacheHttpClientGet {

public static void main(String[] args) {
try {

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet getRequest = new HttpGet(
//            "http://localhost:8080/RESTfulExample/json/product/get");
"http://10.16.232.79:8555/base/helloworld/h");
//        getRequest.addHeader("accept", "application/json");
getRequest.addHeader("accept", "text/plain");

HttpResponse response = httpClient.execute(getRequest);

if (response.getStatusLine().getStatusCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ response.getStatusLine().getStatusCode());
}

BufferedReader br = new BufferedReader(
new InputStreamReader((response.getEntity().getContent())));

String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
}
httpClient.getConnectionManager().shutdown();

} catch (ClientProtocolException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();
}

}

}

post：

<pre name="code" class="html">package org.glassfish.jersey.examples.httpclient;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URI;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicHeader;import org.apache.http.protocol.HTTP;public class ApacheHttpClientPost {public static void main(String[] args) {ApacheHttpClientPost post = new ApacheHttpClientPost();try {//			post.doPost("http://localhost:8080/RESTfulExample/json/product/post", "{\"qty\":100,\"name\":\"iPad 4\"}");//			post.doPost("http://1sss:8555/base/helloworld/post", "{\"qty\":100,\"name\":\"iPad 4\"}");post.doPost("http://abc/def", "{\"sort\":100,\"name\":\"iPad 4\"}");} catch (Exception e) {e.printStackTrace();}/*try {DefaultHttpClient httpClient = new DefaultHttpClient();HttpPost postRequest = new HttpPost("http://10.16.232.79:8555/base/helloworld/post");StringEntity input = new StringEntity("{\"qty\":100,\"name\":\"iPad 4\"}");input.setContentType("application/json");postRequest.setEntity(input);HttpResponse response = httpClient.execute(postRequest);if (response.getStatusLine().getStatusCode() != 201) {throw new RuntimeException("Failed : HTTP error code : "+ response.getStatusLine().getStatusCode());}BufferedReader br = new BufferedReader(new InputStreamReader((response.getEntity().getContent())));String output;System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {System.out.println(output);}httpClient.getConnectionManager().shutdown();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}*/}// public String doPost(String wcfUrl,JSONObject jsonObject) throws// Exception {public String doPost(String wcfUrl, String jsonObject) throws Exception {HttpClient httpClient = new DefaultHttpClient();HttpResponse response;HttpPost post = new HttpPost();HttpEntity httpEntity;StringEntity stringEntity = new StringEntity(jsonObject.toString());stringEntity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json"));httpEntity = stringEntity;post.setEntity(httpEntity);post.setURI(new URI(wcfUrl));post.setHeader("Content-type", "application/json");response = httpClient.execute(post);return parseHttpResponse(response);}public String parseHttpResponse(HttpResponse response) throws Exception {String jsonString = "";int status = response.getStatusLine().getStatusCode();if (status == 200) {BufferedReader bReader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));StringBuffer sb = new StringBuffer("");String line = "";String NL = System.getProperty("line.separator");while ((line = bReader.readLine()) != null) {sb.append(line + NL);}jsonString = sb.toString();bReader.close();}return jsonString;}}