JAVA設置代理訪問網絡方式

JAVA設置代理訪問網絡方式

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一.背景介紹

實際工作中有些的網絡不能直接連接到外網, 需要使用http或是https或是socket代理來連接到外網, 這裏是java使用代理連接到外網的一些方法.

二.實現用java.net.Proxy類

 HttpInvokerProxyFactoryBean httpInvokerProxyFactoryBean = new HttpInvokerProxyFactoryBean();
    
        httpInvokerProxyFactoryBean.setServiceInterface(ITpaicCacheManager.class);
        httpInvokerProxyFactoryBean.setServiceUrl(address);
        HttpClient httpClient = new HttpClient();
        HttpClientParams clientParam = new HttpClientParams();
        
        clientParam.setConnectionManagerTimeout(3000);
        clientParam.setSoTimeout(20000);
        clientParam.setConnectionManagerClass(MultiThreadedHttpConnectionManager.class);
        httpClient.setParams(clientParam);
        httpInvokerProxyFactoryBean.setHttpInvokerRequestExecutor(new CommonsHttpInvokerRequestExecutor(httpClient));
    
        try {
            httpInvokerProxyFactoryBean.afterPropertiesSet();
        
            ITpaicCacheManager cacheManagerRemote = (ITpaicCacheManager)httpInvokerProxyFactoryBean.getObject();     
            
            return cacheManagerRemote;
        } catch (Throwable e) {
            cacheClientInfo.setError();
            cacheClientInfo.setClientInfo(address + "連接失敗" + e.getMessage());
            return null;
        } 

三.直接設置系統屬性，設置後所有網絡請求都有效

只有在所以網絡請求都需要代理時纔可以使用系統屬性

 System.setProperty("proxyType", "4");
 System.setProperty("proxyPort", "xxxx"));
 System.setProperty("proxyHost", "x.x.x.x");
 System.setProperty("proxySet", "true");