从cnblogs的站内搜索网页提交post表单，爬取cnblogs返回的博客链接。将带有搜索结果的页面保存到文件中。
- Java code
package postMethod;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.nio.file.Path;import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.HttpException;import org.apache.commons.httpclient.HttpStatus;import org.apache.commons.httpclient.NameValuePair;import org.apache.commons.httpclient.methods.PostMethod;public class Post { /** * @param args */ private static HttpClient httpClient = new HttpClient(); public static void main(String[] args) throws IOException { String path = "http://zzk.cnblogs.com/"; InputStream input = null; OutputStream output = null; // TODO Auto-generated method stub //得到post方法 PostMethod postMethod = new PostMethod(path); //设置post方法的参数 NameValuePair[] postData = new NameValuePair[1]; postData[0] = new NameValuePair("w","java"); postMethod.addParameters(postData); //执行，返回状态码 int statusCode = 0; try { statusCode = httpClient.executeMethod(postMethod); } catch (HttpException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println(statusCode); //针对状态码进行处理 if(statusCode == HttpStatus.SC_OK) { input = postMethod.getResponseBodyAsStream(); String filename = "aaaa"; output = new FileOutputStream(filename); int tempByte = -1; while ((tempByte = input.read()) > 0) { output.write(tempByte); } if(input != null) { input.close(); } if(output != null) { output.close(); } } }}
返回码是200，搜索框的ID和name都是w，程序执行后查看保存的文件，发现还是原来的搜索主页，没有搜索结果。
各路大神求教啊～～
------解决方案--------------------------------------------------------
用get方式
- Java code
private static HttpClient httpClient = new HttpClient(); public static void main(String[] args) throws IOException { String path = "http://zzk.cnblogs.com/s?w=java"; InputStream input = null; OutputStream output = null; // TODO Auto-generated method stub //得到post方法 GetMethod postMethod = new GetMethod(path); //设置post方法的参数// NameValuePair[] postData = new NameValuePair[1];// postData[0] = new NameValuePair("w","java");// postMethod.addParameters(postData); //执行，返回状态码 int statusCode = 0; try { statusCode = httpClient.executeMethod(postMethod); } catch (HttpException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println(statusCode); //针对状态码进行处理 if(statusCode == HttpStatus.SC_OK) { input = postMethod.getResponseBodyAsStream(); String filename = "D:/aaaa"; output = new FileOutputStream(filename); int tempByte = -1; while ((tempByte = input.read()) > 0) { output.write(tempByte); } if(input != null) { input.close(); } if(output != null) { output.close(); } } }