https://forum.andowson.com/posts/list/5.page JForum - http://www.jforum.net 程式碼：
httpclient.jsp:
[code]<%@ page contentType="text/html;charset=big5" %>
<%@ page import="org.apache.commons.httpclient.*" %>
<%@ page import="org.apache.commons.httpclient.methods.*" %>
<%@ page import="org.apache.commons.httpclient.params.HttpMethodParams" %>
<%@ page import="java.io.*" %>
<%
String url = "http://tw.stock.yahoo.com/";

String stockId = request.getParameter("stock_id");
if (stockId != null) {
url += "q/q?s="+stockId;
}

// Create an instance of HttpClient.
HttpClient client = new HttpClient();

// Create a method instance.
HttpMethod method = new GetMethod(url);

// Provide custom retry handler is necessary
method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(3, false));

try {
// Execute the method.
int statusCode = client.executeMethod(method);

if (statusCode != HttpStatus.SC_OK) {
System.err.println("Method failed: " + method.getStatusLine());
}

// Read the response body.
byte[] responseBody = method.getResponseBody();

// Deal with the response.
// Use caution: ensure correct character encoding and is not binary data
//System.out.println(new String(responseBody));

String result = new String(responseBody, "Big5");
if (stockId != null) {
result = result.substring(result.indexOf("nowrap><b>")+"nowrap><b>".length());
result = result.substring(0, result.indexOf("</b>"));
out.println(stockId + " Price Now: " + result);
} else {
out.println(result);
}
} catch (HttpException e) {
System.err.println("Fatal protocol violation: " + e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.err.println("Fatal transport error: " + e.getMessage());
e.printStackTrace();
} finally {
// Release the connection.
method.releaseConnection();
}
%>[/code]
參考資料：
http://hc.apache.org/httpclient-3.x/tutorial.html]]> https://forum.andowson.com/posts/preList/215/326.page https://forum.andowson.com/posts/preList/215/326.page GMT httpclient4.jsp:
[code=java]<%@ page contentType="text/html;charset=big5" %>
<%@ page import="java.io.IOException" %>
<%@ page import="org.apache.http.client.ClientProtocolException" %>
<%@ page import="org.apache.http.client.HttpClient" %>
<%@ page import="org.apache.http.client.ResponseHandler" %>
<%@ page import="org.apache.http.client.methods.HttpGet" %>
<%@ page import="org.apache.http.impl.client.BasicResponseHandler" %>
<%@ page import="org.apache.http.impl.client.DefaultHttpClient" %>
<%
String url = "http://tw.stock.yahoo.com/";

String stockId = request.getParameter("stock_id");
if (stockId != null) {
url += "q/q?s="+stockId;
}

// Create an instance of HttpClient.
HttpClient httpclient = new DefaultHttpClient();
try {
// Create an HttpGet method instance.
HttpGet httpget = new HttpGet(url);

System.out.println("executing request " + httpget.getURI());

// Create a response handler
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String responseBody = httpclient.execute(httpget, responseHandler);
if (stockId != null) {
responseBody = responseBody.substring(responseBody.indexOf("nowrap><b>")+"nowrap><b>".length());
responseBody = responseBody.substring(0, responseBody.indexOf("</b>"));
out.println(stockId + " Price Now: " + responseBody);
} else {
out.println(responseBody);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}
%>
[/code]]]> https://forum.andowson.com/posts/preList/215/984.page https://forum.andowson.com/posts/preList/215/984.page GMT 將原來這行:
[code]HttpClient httpclient = new DefaultHttpClient();[/code]
修改為(假設proxy是http://10.160.3.88:8080/):
[code]HttpHost proxy = new HttpHost("10.160.3.88", 8080);
HttpClient httpclient = new DefaultHttpClient();
httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);[/code]
同時補上宣告:
[code]<% @page import="org.apache.http.HttpHost" %>
<% @page import="org.apache.http.conn.params.ConnRoutePNames" %>[/code]
即可。]]> https://forum.andowson.com/posts/preList/215/1226.page https://forum.andowson.com/posts/preList/215/1226.page GMT