HttpClient在运用中有两个超时时刻，是一向接触和运用的，由于前次工作中运用httpClient造成了体系悲惨剧的情况，特别对它的两个超时时刻进行了小小的测验，在这里记录下。

     测验版别为HttpClient——3.1

     一：衔接超时：connectionTimeout

     1：指的是衔接一个url的衔接等待时刻。

     2：设置办法为：

     public class TestHttpClientMain {

 /**

  * @param args

  */

 public static void main(String[] args) {

  HttpClient client = new HttpClient();

  HttpMethod method = new GetMethod(

    "http://test.com");

  client.getHttpConnectionManager().getParams()

    .setConnectionTimeout(3000);

  client.getHttpConnectionManager().getParams().setSoTimeout(3000);

  try {

   int statusCode = client.executeMethod(method);

   System.out.println(statusCode);

   byte[] responseBody = null;

   responseBody = method.getResponseBody();

   String result = new String(responseBody);

   System.out.println(result);

  } catch (HttpException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  } catch (IOException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  }

 }

}

     3：测验的时分，将url改为一个不存在的url：“http://test.com”

     4：超时时刻3000ms往后，体系报出异常。

     org.apache.commons.httpclient.ConnectTimeoutException: The host did not accept the connection within timeout of 3000 ms

 at org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:155)

 at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:125)

 at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)

 at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)

 at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)

 at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)

     二：读取数据超时：soTimeout

     1：指的是衔接上一个url，获取response的回来等待时刻

     2：设置办法

     public class TestHttpClientMain {

 /**

  * @param args

  */

 public static void main(String[] args) {

  HttpClient client = new HttpClient();

  HttpMethod method = new GetMethod(

    "http://localhost:8080/firstTest.htm?method=test");

  client.getHttpConnectionManager().getParams()

    .setConnectionTimeout(3000);

  client.getHttpConnectionManager().getParams().setSoTimeout(2000);

  try {

   int statusCode = client.executeMethod(method);

   System.out.println(statusCode);

   byte[] responseBody = null;

   responseBody = method.getResponseBody();

   String result = new String(responseBody);

   System.out.println(result);

  } catch (HttpException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  } catch (IOException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  }

 }

}

     3：测验的时分的衔接url为我本地敞开的一个url，http://localhost:8080/firstTest.htm?method=test

     在我这个测验url里，当访问到这个连接时，线程sleep一段时刻，来模仿回来response超时。

     @RequestMapping(params = "method=test") //<——②

    public String testMethod(ModelMap model) {

  try {

   Thread.sleep(3000);

  } catch (InterruptedException e) {

   // TODO Auto-generated catch block

   e.printStackTrace();

  }

        System.out.println("call testMethod method.");

        model.addAttribute("name", "test method");

  return "test";

    }

     4：将读取response回来超时时刻设的时刻比那个sleep时刻短之后，运行程序给出异常：

      java.net.SocketTimeoutException: Read timed out 

at java.net.SocketInputStream.socket("http://www.fanselang.com","plus");

at java.net.SocketInputStream.socket("http://www.haomad.com","plus");

at java.net.SocketInputStream.socket("http://www.metabase.cn","plus");

at java.net.SocketInputStream.socket("http://www.3h5.cn","plus");

at java.net.SocketInputStream.socket("http://www.4lunwen.cn","plus");

at java.net.SocketInputStream.socket("http://www.zx1234.cn","plus");

at java.net.SocketInputStream.socket("http://www.majiangji168.cn","plus");

at java.net.SocketInputStream.socket("http://www.penbar.cn","plus");

at java.net.SocketInputStream.socket("http://www.whathappy.cn","plus");

at java.net.SocketInputStream.socket("http://www.lunjin.net","plus");

at java.net.SocketInputStream.socket("http://www.ssstyle.cn","plus");

at java.net.SocketInputStream.socket("http://www.91fish.cn","plus");

 at java.net.SocketInputStream.socketRead0(Native Method)

 at java.net.SocketInputStream.read(Unknown Source)

 at java.io.BufferedInputStream.fill(Unknown Source)

 at java.io.BufferedInputStream.read(Unknown Source)

 at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78)

 at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106)

 at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116)

 at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973)

 at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735)

     ok，今后再写httpClient这两个超时时刻一定要加上，不加就很能够悲惨剧的了。