Java\u8bed\u8a00\u7684\u4f18\u52bf\u4e4b\u4e00\u662fJava\u7a0b\u5e8f\u80fd\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u3002Java\u63d0\u4f9b\u4e00\u7cfb\u5217\u7684\u7c7b\u652f\u6301Java\u7a0b\u5e8f\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u3002
\nTCP\/IP\u534f\u8bae
\n<\/p>\n
\u4e3a\u4e86\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1,\u901a\u4fe1\u53cc\u65b9\u5fc5\u987b\u9075\u5b88\u901a\u4fe1\u534f\u8bae.\u76ee\u524d\u6700\u5e7f\u6cdb\u4f7f\u7528\u7684\u662fTCP\/IP\u534f\u8bae,\u5b83\u662fInternet\u4e2d\u5404\u65b9\u6240\u9075\u5faa\u7684\u516c\u5171\u534f\u8bae.TCP(Transport Control Protocol)\u662f\u4e00\u79cd\u4f20\u8f93\u63a7\u5236\u534f\u8bae,IP(Internet Protocol)\u662f\u4e00\u79cd\u7f51\u9645\u534f\u8bae\uff0cTCP\/IP\u4ee3\u8868\u8fd9\u4e24\u4e2a\u534f\u8bae\u7684\u3002<\/p>\n
TCP\/IP\u5206\u4e3a\u56db\u4e2a\u5c42\u6b21\uff1a
\n\u7f51\u7edc\u63a5\u53e3\u5c42\uff1a\u8d1f\u8d23\u63a5\u6536\u548c\u53d1\u9001\u7269\u7406\u5e27\uff1b
\n\u7f51\u7edc\u5c42\uff1a\u8d1f\u8d23\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4\u7684\u901a\u4fe1\uff1b
\n\u4f20\u8f93\u5c42\uff1a\u8d1f\u8d23\u8d77\u70b9\u5230\u7ec8\u70b9\u7684\u901a\u4fe1\uff1b
\n\u5e94\u7528\u5c42\uff1a\u63d0\u4f9b\u8bf8\u5982\u6587\u4ef6\u4f20\u8f93\u3001\u7535\u5b50\u90ae\u4ef6\u7b49\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n
TCP\u534f\u8bae\u5c06\u4efb\u4f55\u7f51\u7edc\u4fe1\u606f\u4f20\u8f93\u5f53\u4f5c\u4fe1\u606f\u6d41\u3002\u4f8b\u5982\uff0c\u673a\u5668A\u4e0a\u7684\u4e00\u4e2a\u957f\u62a5\u6587\u53d1\u9001\u5230\u673a\u5668B\uff0c\u53d1\u9001\u7aefA\u9700\u8981\u5c06\u6570\u636e\u5206\u7247\uff0c\u628a\u4e00\u7247\u7247\u6570\u636e\u5206\u522b\u6253\u5305\u53d1\u9001\u3002\u6570\u636e\u5305\u6709\u4e00\u4e2a\u5934\uff0c\u6307\u660e\u8be5\u6570\u636e\u5305\u53d1\u5f80\u4f55\u5904\u3001\u5305\u4e2d\u6570\u636e\u5728\u63a5\u6536\u5e8f\u5217\u4e2d\u6240\u5904\u7684\u4f4d\u7f6e\u3002\u6bcf\u4e2a\u5305\u90fd\u6309\u7167IP\u5730\u5740\u63d0\u4f9b\u7684\u76ee\u7684\u5730\u4ece\u4e00\u4e2a\u53f0\u673a\u5668\u4f20\u9001\u5230\u53e6\u4e00\u53f0\u673a\u5668\uff0c\u6216\u4ece\u4e00\u4e2a\u7f51\u7edc\u8282\u70b9\u4f20\u9001\u5230\u53e6\u4e00\u4e2a\u7f51\u7edc\u8282\u70b9\u3002\u5728\u63a5\u6536\u7aefB\uff0c\u8fd9\u4e9b\u6570\u636e\u5305\u90fd\u80fd\u591f\u6309\u7167\u6b63\u786e\u7684\u987a\u5e8f\u91cd\u65b0\u7ec4\u88c5\u8d77\u6765\u3002<\/p>\n
TCP\/IP\u534f\u8bae\u662f\u4e00\u4e2a\u534f\u8bae\u65cf\uff0c\u7531\u4e00\u7ec4\u534f\u8bae\u7ec4\u6210\uff0c\u4e3b\u8981\u5305\u542b\u4ee5\u4e0b\u66f4\u5177\u4f53\u7684\u534f\u8bae\uff1a
\nTelnet\uff08\u8fdc\u7a0b\u767b\u5f55\uff09\uff1a\u5141\u8bb8\u4e00\u53f0\u8ba1\u7b97\u673a\u7528\u6237\u767b\u5f55\u5230\u53e6\u4e00\u53f0\u8fdc\u7a0b\u8ba1\u7b97\u673a\u4e0a\uff0c\u4f7f\u8fdc\u7a0b\u64cd\u4f5c\u5982\u540c\u5728\u672c\u5730\u8ba1\u7b97\u673a\u4e0a\u64cd\u4f5c\u4e00\u6837\u3002
\nFTP\uff08File Transfer protocol\uff0c\u6587\u4ef6\u4f20\u8f93\u534f\u8bae\uff09\uff1a\u5141\u8bb8\u7528\u6237\u5c06\u8fdc\u7a0b\u4e3b\u673a\u4e0a\u7684\u6587\u4ef6\u590d\u5236\u5230\u81ea\u5df1\u7684\u8ba1\u7b97\u673a\u4e0a\u3002
\nSMTP\uff08simple Mail Transfer Protocol\uff0c\u7b80\u5355\u90ae\u4ef6\u4f20\u8f93\u534f\u8bae\uff09\uff1a\u7528\u4e8e\u4f20\u8f93\u7535\u5b50\u90ae\u4ef6\u3002
\nNFS\uff08Network file Server\uff0c\u7f51\u7edc\u6587\u4ef6\u670d\u52a1\u5668\uff09\uff1a\u4f7f\u591a\u53f0\u8ba1\u7b97\u673a\u900f\u660e\u5730\u8bbf\u95ee\u5f7c\u6b64\u7684\u76ee\u5f55\u3002
\nHTTP\uff1a\u4e00\u79cd\u8d85\u6587\u672c\u4f20\u8f93\u534f\u8bae\uff0c\u5b83\u662f\u57fa\u4e8eTCP\/IP\u534f\u8bae\u7684\uff0c\u662fWWW\u6d4f\u89c8\u5668\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u5e94\u7528\u5c42\u7684\u901a\u4fe1\u534f\u8bae\u3002HTTP\u662f\u4e00\u79cd\u901a\u7528\u3001\u65e0\u72b6\u6001\u3001\u9762\u5411\u5bf9\u8c61\u7684\u534f\u8bae\u3002HTTP\u4f1a\u8bdd\uff08\u4e8b\u52a1\uff09\u5305\u62ec\u56db\u4e2a\u6b65\u9aa4\uff1a\u8fde\u63a5\uff08Connection\uff09\u3001\u8bf7\u6c42\uff08Request\uff09\u3001\u5e94\u7b54\uff08Response\uff09\u548c\u5173\u95ed\uff08Close\uff09\u3002<\/p>\n
Java\u8bed\u8a00\u53ef\u7f16\u5199\u4f4e\u5c42\u7684\u7f51\u7edc\u5e94\u7528\u3002\u4f8b\u5982\uff0c\u4f20\u8f93\u6587\u4ef6\uff0c\u5efa\u7acb\u90ae\u4ef6\u63a7\u5236\u5668\uff0c\u5904\u7406\u7f51\u7edc\u6570\u636e\u7b49\u3002Java\u8bed\u8a00\u652f\u6301\u7684Internet\u534f\u8bae\u6709ftp\u3001telnet\u3001www\u7b49\uff0c\u652f\u6301\u7f51\u7edc\u901a\u4fe1\u7684\u8f6f\u4ef6\u90fd\u5728java.net\u5305\u4e2d\uff0c\u4f8b\u5982\uff0cjava.net.ftp\u3001java.net.www\u7b49\u3002
\nIP\u5730\u5740<\/p>\n
IP\u5730\u5740\u7528\u4e8e\u6307\u660e\u56e0\u7279\u7f51\u4e0a\u7684\u4e00\u53f0\u8ba1\u7b97\u673a\u5728\u7f51\u7edc\u4e2d\u7684\u5730\u5740\uff0c\u752832\u4f4d\u4e8c\u8fdb\u5236\u4ee3\u7801\u8868\u793a\u4e00\u4e2a\u7f51\u7edc\u5730\u5740\u3002\u5730\u5740\u5206A\u3001B\u3001C\u3001D\u3001E\u4e94\u7c7b\uff0c\u5e38\u7528\u7684\u662fA\u3001B\u3001C\u4e09\u7c7b\uff1a
\nA\uff081.0.0.0-126.255.255.255\uff09\uff1a0,7\u4f4d\u7f51\u7edc\u53f7\uff0c\u540e24\u4f4d\u4e3a\u4e3b\u673a\u53f7\uff1b
\nB\uff08128.0.0.0-191.255.255.255\uff09\uff1a10,14\u4f4d\u7f51\u7edc\u53f7,\u540e16\u4f4d\u4e3a\u4e3b\u673a\u53f7\uff1b
\nC\uff08192.0.0.0-223.255.255.255\uff09\uff1a110,21\u4f4d\u7f51\u7edc\u53f7,\u540e8\u4f4d\u4e3a\u4e3b\u673a\u53f7\uff1b
\nD\uff08224.0.0.0-239.255.255.255\uff09\uff1a1110,28\u4f4d\u591a\u70b9\u5e7f\u64ad\u7ec4\u6807\u53f7\uff1b
\nE\uff08240.0.0.0-254.255.255.255\uff09\uff1a1111,\u4fdd\u7559\u8bd5\u9a8c\u4f7f\u7528\u3002<\/p>\n
\u901a\u5e38\uff0cIP\u5730\u5740\u7528\u56db\u6bb5\u5341\u8fdb\u5236\u6570\u8868\u793a\uff088\u4f4d\u4e00\u6bb5\uff09\u3002\u4f8b\u5982\uff1a
\n\u00a0\u00a0\u00a0 116.255.226.187
\n\u6216\u7528\u6587\u5b57\u57df\u540d\u8868\u793a\u3002\u4f8b\u5982\uff1a
\n\u00a0\u00a0\u00a0 www.xinhua.net
\n\u5728\u56e0\u7279\u7f51\u4e0a\uff0c\u57df\u540d\u670d\u52a1\u5668\uff08Domain Name Server,DNS\uff09\u6267\u884c\u6587\u5b57\u540d\u79f0\u5230\u4e8c\u8fdb\u5236\u7f51\u7edc\u5730\u5740\u7684\u6620\u5c04\u3002
\nInetAddress\u7c7b<\/p>\n
Java.net\u5305\u4e2d\u6709InetAddress\u7c7b\u7684\u5b9a\u4e49\uff0cInetAddress\u7c7b\u7684\u5bf9\u8c61\u7528\u4e8eIP\u5730\u5740\u548c\u57df\u540d\uff0c\u8be5\u7c7b\u63d0\u4f9b\u4ee5\u4e0b\u65b9\u6cd5\uff1a
\ngetByName(String s)\uff1a\u83b7\u5f97\u4e00\u4e2aInetAddress \u7c7b\u7684\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u4e2d\u542b\u6709\u4e3b\u673a\u7684IP\u5730\u5740\u548c\u57df\u540d\uff0c\u8be5\u5bf9\u8c61\u7528\u5982\u4e0b\u683c\u5f0f\u8868\u793a\u5b83\u5305\u542b\u7684\u4fe1\u606f\uff1awww.sina.com.cn\/202.108.37.40\uff1b
\nString getHostName()\uff1a\u83b7\u53d6InetAddress\u5bf9\u8c61\u7684\u57df\u540d\uff1b
\nString getHostAddress()\uff1a\u83b7\u53d6InetAddress\u5bf9\u8c61\u7684IP\u5730\u5740\uff1b
\ngetLocalHost()\uff1a\u83b7\u5f97\u4e00\u4e2aInetAddress\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u542b\u6709\u672c\u5730\u673a\u7684\u57df\u540d\u548cIP\u5730\u5740\u3002<\/p>\n
\u3010\u4f8b 13-1\u3011 \u8bf4\u660eInetaddress\u7c7b\u7684\u7528\u6cd5\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u7a0b\u5e8f\u6f14\u793a\u5982\u4f55\u83b7\u53d6www.xinhua.net\u7684\u57df\u540d\u548cIP\u5730\u5740\u3002
\n[java]Import java.net.*;
\nClass Example10_1{
\n\u00a0\u00a0\u00a0 Public static void main(String args[]){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Try{ \/\/\u4ee5\u4e0b\u4ee3\u7801\u901a\u8fc7\u57df\u540d\u5efa\u7acbInetAddress\u5bf9\u8c61\uff1a
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 InetAddress addr = InetAddress.getByname(\u201cwww.xinhua.net\u201d);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 String domainName = addr.getHostName();\/\/\u83b7\u5f97\u4e3b\u673a\u540d
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 String IPName = addr.getHostAddress();\/\/\u83b7\u5f97IP\u5730\u5740
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(domainName);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(IPName);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }catch(UnknownHostException e){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e.printStackTrace();
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0 }
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c\u4e3a\uff1a
\nwww.xinhua.net
\n116.255.226.187[\/java]<\/p>\n","protected":false},"excerpt":{"rendered":"
Java\u8bed\u8a00\u7684\u4f18\u52bf\u4e4b\u4e00\u662fJava\u7a0b\u5e8f\u80fd\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u3002Java\u63d0\u4f9b\u4e00\u7cfb\u5217\u7684\u7c7b\u652f\u6301Java\u7a0b\u5e8f\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u3002 TC […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20],"tags":[],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/685"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=685"}],"version-history":[{"count":1,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/685\/revisions"}],"predecessor-version":[{"id":686,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/685\/revisions\/686"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}