HttpClient使用post方法提交数据 源代码:
package post; import Java.io.IOException; import org.apache.commons.httpclient.Header; 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 PostHttp { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub HttpClient httpClient = new HttpClient(); String url = "http://193.167.13.21/setup.cgi"; PostMethod postMethod = new PostMethod(url); // 填入各个表单域的值 NameValuePair[] data = { new NameValuePair("ID", "11"), new NameValuePair("mtg", "0"), new NameValuePair("haveCookie", "0"), new NameValuePair("backID", "30"), new NameValuePair("psw", "password") }; // 将表单的值放入postMethod中 postMethod.setRequestBody(data); // 执行postMethod 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(); } // HttpClient对于要求接受后继服务的请求,象POST和PUT等不能自动处理转发 // 301或者302 if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY || statusCode == HttpStatus.SC_MOVED_TEMPORARILY) { // 从头中取出转向的地址 Header locationHeader = postMethod.getResponseHeader("location"); String location = null; if (locationHeader != null) { location = locationHeader.getValue(); System.out.println("The page was redirected to:" + location); } else { System.err.println("Location field value is null."); } return; } else { System.out.println(postMethod.getStatusLine()); String str = ""; try { str = postMethod.getResponseBodyAsString(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println(str); } postMethod.releaseConnection(); return ; } }
//这是一个用户认证过程的登陆信息
其中需要的jar包:
1、commons-httpclient-3.1-rc1.zip http://jakarta.apache.org/commons/httpclient/downloads.html
2、commons-codec-1.3.jar http://jakarta.apache.org/site/downloads/downloads_commons-codec.cgi
3、commons-logging-api.jar 在tomcat5.5中的Tomcat 5.5/bin目录下或者 http://jakarta.apache.org/site/downloads/downloads_commons-logging.cgi
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