ThreadLocal生成多线程WebClient

package test;


//www.cnblogs.com/chenying99/articles/3213544.html
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.NicelyResynchronizingAjaxController;
import com.gargoylesoftware.htmlunit.WebClient;
//多线程webclient,本方案简单、小巧，容易理解
//ThreadLocalClientFactory.getInstance().getWebClient()调用
    public  class ThreadLocalClientFactory{
        
            //单例工厂模式
        private final static ThreadLocalClientFactory instance =new ThreadLocalClientFactory();
        
        public static ThreadLocalClientFactory getInstance(){
            return instance;
            }
        
        
        // 覆写ThreadLocal的initialValue方法
        //线程的本地实例存储器，用于存储WebClient实例
      private ThreadLocal<WebClient> client = new ThreadLocal<WebClient>() {  
    
          @Override    
      //该方法ThreadLocal变量第一次get的时候执行,如果该线程已经执行过set方法，initialValue不会执行
      protected synchronized WebClient initialValue(){  
          WebClient webClient = new WebClient(BrowserVersion.FIREFOX_17);  
            
           //设置webClient的相关参数  
          webClient.getCookieManager().setCookiesEnabled(true);// 开启cookie管理
            webClient.getOptions().setJavaScriptEnabled(true);// 开启js解析
            webClient.getOptions().setCssEnabled(false);
            // 当出现Http error时，程序不抛异常继续执行
            webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
            // 防止js语法错误抛出异常
            webClient.getOptions().setThrowExceptionOnScriptError(false); // js运行错误时，是否抛出异常
            webClient.getOptions().setTimeout(10000);
            // 默认是false, 设置为true的话不让你的浏览行为被记录
            webClient.getOptions().setDoNotTrackEnabled(false);
            // 设置Ajax异步处理控制器即启用Ajax支持
            webClient
                    .setAjaxController(new NicelyResynchronizingAjaxController());
        
          return webClient;  
      }  
  };  
    
  
  public void setWebClient(WebClient wc) {  
      client.set(wc);  
  }  
    
  public WebClient getWebClient() {  
      return client.get();  
  } 
  

    }