- public static void Login() {
- String url = "http://www.***.com/login";
- PostMethod postMethod = new PostMethod(url);
- // 填入各个表单域的值
- NameValuePair[] data = {
- new NameValuePair("account", "yijianfeng_vip@163.com"),
- new NameValuePair("nextUrl", ""),
- new NameValuePair("lcallback", ""),
- new NameValuePair("password ", "******"),
- new NameValuePair("persistent", "1"), };
- // 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) {
- e.printStackTrace();
- } catch (IOException e) {
- 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("diandianLogin:" + 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) {
- e.printStackTrace();
- }
- System.out.println(str);
- }
- postMethod.releaseConnection();
- return;
- }
- 其中需要的jar包:
- 1、 commons-httpclient.jar
- 2、commons-codec.jar
- 3、commons-logging.jar
今天开发时,遇到利用Java中HttpClient类以POST方式提交数据,目标收到后中文乱码问题。
请求端代码:
- /**
- * HttpClient提交参数
- * @author sunyunfang@126.com
- */
- public static void main(String[] args) throws IOException {
- HttpClient client = new HttpClient();
- client.getHostConfiguration().setHost("127.0.0.1", 8081, "http");
- // 使用POST方式提交数据
- HttpMethod method = getPostMethod();
- client.executeMethod(method);
- // 打印服务器返回的状态
- System.out.println(method.getStatusLine());
- // 打印结果页面
- String response = new String(method.getResponseBodyAsString().getBytes("8859_1"));
- // 打印返回的信息
- System.out.println(response);
- method.releaseConnection();
- }
- // 使用POST方式提交数据
- private static HttpMethod getPostMethod() {
- String url = "/PushServer/notification.do?action=sendOneMsg";
- NameValuePair message = new NameValuePair("message", "消息内容。");
- post.setRequestBody(new NameValuePair[]{message});
- return post;
- }
- // 使用GET方式提交数据
- private static HttpMethod getGetMethod() {
- return new GetMethod("/PushServer/notification.do?action=sendOneMsg&message=abcd");
- }
目标端代码:
- /**
- * 供MsgServer远程调用
- * @param request
- * @param response
- * @return
- * @throws Exception
- * @author SunYunfang@126.com
- */
- public ModelAndView sendOneMsg(HttpServletRequest request,
- HttpServletResponse response) throws Exception {
- String message = ServletRequestUtils.getStringParameter(request, "message");
- }
这段代码执行后,目标能收到信息,但是中文乱码,也没有找到转码的方法。
经分析,原来使用 NameValuePair 加入的HTTP请求的参数最终都会转化为 RequestEntity
提交到HTTP服务器。接着在PostMethod的父类 EntityEnclosingMethod
中发现,只要重载getRequestCharSet()方法就能设置提交的编码(字符集)。
修正后:
- /**
- * HttpClient提交参数
- * @author SunYunfang@126.com
- */
- public static void main(String[] args) throws IOException {
- HttpClient client = new HttpClient();
- client.getHostConfiguration().setHost("127.0.0.1", 8081, "http");
- // 使用POST方式提交数据
- HttpMethod method = getPostMethod();
- client.executeMethod(method);
- // 打印服务器返回的状态
- System.out.println(method.getStatusLine());
- // 打印结果页面
- String response = new String(method.getResponseBodyAsString().getBytes("8859_1"));
- // 打印返回的信息
- System.out.println(response);
- method.releaseConnection();
- }
- // 使用POST方式提交数据
- private HttpMethod getPostMethod() {
- String url = "/PushServer/notification.do?action=sendOneMsg";
- PostMethod post = new UTF8PostMethod(url);
- NameValuePair message = new NameValuePair("message", "消息内容。");
- post.setRequestBody(new NameValuePair[]{message});
- return post;
- }
- //Inner class for UTF-8 support
- public static class UTF8PostMethod extends PostMethod{
- public UTF8PostMethod(String url){
- super(url);
- }
- @Override
- public String getRequestCharSet() {
- //return super.getRequestCharSet();
- return "UTF-8";
- }
- }
- // 使用GET方式提交数据
- private static HttpMethod getGetMethod() {
- return new GetMethod("/PushServer/notification.do?action=sendOneMsg&message=abcd");
- }