初探HttpClient——把百度首页扒下来放到本地
闲着没事，找点东西学习，呵呵^^
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用HttpClient生成静态页面Demo：
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package tests;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.io.Writer;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.util.EntityUtils;/** * HttpClient生成静态页测试 * * @author Java * @date 2012-02-07 22:55 */public class TestHttpClient {/** * 测试将百度首页生成到C:\\test\\baidu.html * * @param args */public static void main(String[] args) {try {writeHTML(getSiteContent("http://www.baidu.com"),"C:\\test\\baidu.html");System.out.println("OK,生成静态页成功！");} catch (Exception e) {e.printStackTrace();}}/** * 根据指定的URL获取网页的内容 * * @param url 访问地址URL * * @return 载有内容的字符串 */public static String getSiteContent(String url) {HttpClient httpClient = new DefaultHttpClient();HttpGet request = new HttpGet(url);String content = null;try {HttpResponse response = httpClient.execute(request);HttpEntity entity = response.getEntity();content = EntityUtils.toString(entity);// System.out.println(EntityUtils.getContentCharSet(entity));// System.out.println(EntityUtils.getContentMimeType(entity));// System.out.println(EntityUtils.toString(entity));} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return content;}/** * 将指定的文本写入指定的目录的文件 * * @param content 将要写入的文本 * * @param filePath 文件路径 * * @throws IOException IO异常 * */public static void writeHTML(String content, String filePath)throws IOException {File file = new File(filePath);File fileParent = file.getParentFile();if(!fileParent.exists()) {fileParent.mkdirs();}Writer writer = new FileWriter(file);writer.write(content);writer.close();}}