httpclient代理有什么作用，或者说代理的目的是什么。请高人指点，给我一个java代码示例。万分感谢。

发布网友 发布时间：2022-05-07 22:26

我来回答

共1个回答

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}

热心网友 时间：2023-11-18 02:57

参见apache官方文档 http://hc.apache.org/httpcomponents-client-ga/examples.html

DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 8080),
new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
HttpHost proxy = new HttpHost("localhost", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

HttpGet httpget = new HttpGet("/");

。。。。

} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}