若在java application中访问外部网站,首先应设置proxy信息,样例代码如下:
import java.util.properties;
.....
Properties sys = System.getProperties();
sys.put("proxySet","true");
sys.put("proxyHost","myHTTP.proxyserver.com");
sys.put("proxyPort","80");
System.setProperties(sys);
u = new URL(website);
connect = (HttpURLConnection)u.openConnection();
.....
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