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<TITLE>BBS水木清华站∶精华区</TITLE></HEAD><BODY><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER>发信人:&nbsp;false&nbsp;(笨笨),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>我在程序中使用了socket，可是在浏览器中出现如下错误：&nbsp;<BR>com.ms.security.SecurityExceptionEx[netWork.init]:&nbsp;cannot&nbsp;connect&nbsp;to&nbsp;&quot;210.78.144.5&quot;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/permissions/NetIOPermission.check&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/PolicyEngine.deepCheck&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/PolicyEngine.checkPermission&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/StandardSecurityManager.chk&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/StandardSecurityManager.chkex&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/StandardSecurityManager.checkConnect&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;java/net/Socket.&lt;init&gt;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;java/net/Socket.&lt;init&gt;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;netWork.init&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;Applet1.beginInit&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;Applet1.jbInit&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;Applet1.init&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.securedCall0&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.securedCall&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.processSentEvent&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.processSentEvent&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.run&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;java/lang/Thread.run&nbsp;<BR>Exception&nbsp;in&nbsp;init&nbsp;in&nbsp;network&nbsp;<BR>com.ms.security.SecurityExceptionEx[netWork.init]:&nbsp;cannot&nbsp;connect&nbsp;to&nbsp;&quot;210.78.144.5&quot;&nbsp;<BR>Exception&nbsp;in&nbsp;run&nbsp;in&nbsp;network&nbsp;<BR>java.lang.NullPointerException&nbsp;<BR>&nbsp;<BR>我使用的是personal&nbsp;web&nbsp;server，ie4&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;Yapith&nbsp;(早起的鸟儿有食吃),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>applet只能和下载它的WEB主机通讯。210.78.....是你的applet&nbsp;<BR>所在页面的WEB主机么？&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;false&nbsp;(笨笨)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;我在程序中使用了socket，可是在浏览器中出现如下错误：&nbsp;</I><BR>∶<I>&nbsp;com.ms.security.SecurityExceptionEx[netWork.init]:&nbsp;cannot&nbsp;connect&nbsp;to&nbsp;&quot;210.78.144.5&quot;&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/permissions/NetIOPermission.check&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/PolicyEngine.deepCheck&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/PolicyEngine.checkPermission&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/StandardSecurityManager.chk&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/StandardSecurityManager.chkex&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/security/StandardSecurityManager.checkConnect&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;java/net/Socket.&lt;init&gt;&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;java/net/Socket.&lt;init&gt;&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;netWork.init&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;Applet1.beginInit&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;Applet1.jbInit&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;Applet1.init&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.securedCall0&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.securedCall&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.processSentEvent&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.processSentEvent&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;com/ms/applet/AppletPanel.run&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at&nbsp;java/lang/Thread.run&nbsp;</I><BR>∶<I>&nbsp;Exception&nbsp;in&nbsp;init&nbsp;in&nbsp;network&nbsp;</I><BR>∶<I>&nbsp;com.ms.security.SecurityExceptionEx[netWork.init]:&nbsp;cannot&nbsp;connect&nbsp;to&nbsp;&quot;210.78.144.5&quot;&nbsp;</I><BR>∶<I>&nbsp;Exception&nbsp;in&nbsp;run&nbsp;in&nbsp;network&nbsp;</I><BR>∶<I>&nbsp;java.lang.NullPointerException&nbsp;</I><BR>∶<I>&nbsp;我使用的是personal&nbsp;web&nbsp;server，ie4&nbsp;</I><BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;zerocool2000&nbsp;(小马),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>applet于主机通信时不能用直接的&nbsp;<BR>IP地址，不论IP是否为主机地址，&nbsp;<BR>采用getHost()方法取得主机地址，&nbsp;<BR>才能通信。。。&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;Yapith&nbsp;(早起的鸟儿有食吃),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;zerocool2000&nbsp;(小马)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;applet于主机通信时不能用直接的IP地址，不论IP是否为主机地址，&nbsp;</I><BR>&nbsp;&nbsp;^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&nbsp;<BR>&nbsp;&nbsp;这句话是错的，你可以试一下。当IP地址和主机地址一致时是可以&nbsp;<BR>建立连接的.&nbsp;使用getHost()方法只是为了保证地址一定和主机地址&nbsp;<BR>一致.&nbsp;&nbsp;<BR>&nbsp;<BR>∶<I>&nbsp;采用getHost()方法取得主机地址，&nbsp;</I><BR>∶<I>&nbsp;才能通信。。。&nbsp;</I><BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;false&nbsp;(笨笨),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>那就是说，只能在提供applet的机器上提供相应的服务了？&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;Yapith&nbsp;(早起的鸟儿有食吃)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;applet只能和下载它的WEB主机通讯。210.78.....是你的applet&nbsp;</I><BR>∶<I>&nbsp;所在页面的WEB主机么？&nbsp;</I><BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;Yapith&nbsp;(早起的鸟儿有食吃),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>对！&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;false&nbsp;(笨笨)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;那就是说，只能在提供applet的机器上提供相应的服务了？&nbsp;</I><BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;false&nbsp;(笨笨),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>thx&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;Yapith&nbsp;(早起的鸟儿有食吃)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;对！&nbsp;</I><BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>发信人:&nbsp;newid&nbsp;(白云),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;Yapith&nbsp;(早起的鸟儿有食吃)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;&nbsp;&nbsp;^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&nbsp;</I><BR>∶<I>&nbsp;&nbsp;&nbsp;这句话是错的，你可以试一下。当IP地址和主机地址一致时是可以&nbsp;</I><BR>∶<I>&nbsp;建立连接的.&nbsp;使用getHost()方法只是为了保证地址一定和主机地址&nbsp;</I><BR>∶<I>&nbsp;一致.&nbsp;&nbsp;</I><BR>Yapith在胡说,当你又苯佑胕p地址时,浏览器会认为你再箱第三方发信息从而产生&nbsp;<BR>securityException&nbsp;<BR>
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