{"id":670,"date":"2017-03-15T16:17:23","date_gmt":"2017-03-15T08:17:23","guid":{"rendered":"http:\/\/www.rainweb.site\/?p=598"},"modified":"2023-08-07T20:57:28","modified_gmt":"2023-08-07T12:57:28","slug":"java-article66","status":"publish","type":"post","link":"http:\/\/rain1024.com\/index.php\/2017\/03\/15\/java-article66\/","title":{"rendered":"Java\u57fa\u4e8eTCP\u7684\u7f51\u7edc\u7f16\u7a0b"},"content":{"rendered":"<p>Java\u57fa\u4e8eTCP\u7684\u7f51\u7edc\u7f16\u7a0b<\/p>\n<h2>1.Socket\u7c7b<\/h2>\n<ul>\n<li>\u6784\u9020\u65b9\u6cd5\n<ul>\n<li>Socket(InetAddress | String host,int port) \u521b\u5efa\u8fde\u63a5\u5230\u6307\u5b9a\u8fdc\u7a0b\u4e3b\u673a\u548c\u7aef\u53e3\u53f7\u7684Socket\u5bf9\u8c61\uff0c\u8be5\u6784\u9020\u65b9\u6cd5\u6ca1\u6709\u6307\u5b9a\u672c\u5730\u5730\u5740\u548c\u672c\u5730\u7aef\u53e3\u53f7\uff0c\u9ed8\u8ba4\u4f7f\u7528\u672c\u5730\u4e3b\u673aIP\u5730\u5740\u548c\u7cfb\u7edf\u52a8\u6001\u5206\u914d\u7684\u7aef\u53e3\uff1b<\/li>\n<li>Socket(InetAddress | String host,int port,InetAddress localAddr ,int localPort)\u521b\u5efa\u8fde\u63a5\u5230\u6307\u5b9a\u4e3b\u673a\u548c\u7aef\u53e3\u53f7\u7684Socket\u5bf9\u8c61\uff0c\u5e76\u6307\u5b9a\u672c\u5730IP\u5730\u5740\u548c\u672c\u5730\u7aef\u53e3\u53f7\uff0c\u9002\u7528\u7528\u672c\u5730\u4e3b\u673a\u6709\u591a\u4e2aIP\u5730\u5740\u7684\u60c5\u51b5<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u6cd5<\/th>\n<th>\u529f\u80fd\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>public InetAddress getInetAddress()<\/td>\n<td>\u8fd4\u56de\u8fde\u63a5\u5230\u8fdc\u7a0b\u4e3b\u673a\u7684\u5730\u5740\uff0c\u5982\u679c\u8fde\u63a5\u5931\u8d25\u5219\u8fd4\u56de\u4ee5\u524d\u8fde\u63a5\u7684\u4e3b\u673a<\/td>\n<\/tr>\n<tr>\n<td>public int getPort()<\/td>\n<td>\u8fd4\u56deSocket\u8fde\u63a5\u5230\u8fdc\u7a0b\u4e3b\u673a\u7684\u7aef\u53e3\u53f7<\/td>\n<\/tr>\n<tr>\n<td>public int getLocalPort()<\/td>\n<td>\u8fd4\u56de\u672c\u5730\u8fde\u63a5\u7ec8\u7aef\u7684\u7aef\u53e3\u53f7<\/td>\n<\/tr>\n<tr>\n<td>public InputStream getInputStream()<\/td>\n<td>\u8fd4\u56de\u4e00\u4e2a\u8f93\u5165\u6d41\uff0c\u4eceSocket\u8bfb\u53d6\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td>public OutputStream getOutputStream()<\/td>\n<td>\u8fd4\u56de\u4e00\u4e2a\u8f93\u51fa\u6d41\uff0c\u5f80Socket\u4e2d\u5199\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td>public synchronized void close()<\/td>\n<td>\u5173\u95ed\u5f53\u524dSocket\u8fde\u63a5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\u521b\u5efa\u6b65\u9aa4\uff1a\n<ul>\n<li>\n<ol>\n<li>\u6839\u636e\u6307\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u521b\u5efa\u4e00\u4e2asocket\u5bf9\u8c61<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u8c03\u7528getInputStream()\u65b9\u6cd5\u6216getOutputStream()\u65b9\u6cd5\u6253\u5f00\u8fde\u63a5\u5230Socket\u7684\u8f93\u5165\/\u8f93\u51fa\u6d41<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u6839\u636e\u534f\u8bae\u8fdb\u884c\u4ea4\u4e92\uff0c\u76f4\u5230\u5173\u95ed\u8fde\u63a5<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u5173\u95ed\u5ba2\u6237\u7aef\u7684Socket <\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u5b9e\u4f8b\u4ee3\u7801<\/h3>\n<pre><code class=\"Java\">package com.rain.demo;\nimport java.io.BufferedReader;\nimport java.io.IOException;\nimport java.io.InputStreamReader;\nimport java.io.PrintStream;\nimport java.net.Socket;\nimport java.net.UnknownHostException;\npublic class SocketDemo {\n    public static void main(String[] args) {\n        try {\n            \/\/\u521b\u5efa\u8fde\u63a5\u5230\u672c\u673a\u3001\u7aef\u53e3\u4e3a28888\u7684Socket\u5bf9\u8c61\n            java.net.Socket socket = new java.net.Socket(\"127.0.0.1\", 28888);\n            \/\/ \u5c06Socket\u5bf9\u5e94\u7684\u8f93\u51fa\u6d41\u5305\u88c5\u6210PrintStream\n            PrintStream ps = new PrintStream(socket.getOutputStream());\n            \/\/ \u5f80\u670d\u52a1\u5668\u53d1\u9001\u4fe1\u606f\n            ps.println(\"\u6211\u662f121\");\n            ps.flush();\n            \/\/ \u5c06Socket\u5bf9\u5e94\u7684\u8f93\u5165\u6d41\u5305\u88c5\u6210BufferedReader\n            BufferedReader br = new BufferedReader(new InputStreamReader(\n                    socket.getInputStream()));\n            \/\/ \u8bfb\u670d\u52a1\u5668\u8fd4\u56de\u7684\u4fe1\u606f\u5e76\u663e\u793a\n            String line = br.readLine();\n            System.out.println(\"\u6765\u81ea\u670d\u52a1\u5668\u7684\u6570\u636e\uff1a\" + line);\n            \/\/ \u5173\u95ed\n            br.close();\n            ps.close();\n            socket.close();\n        } catch (UnknownHostException e) {\n            e.printStackTrace();\n        } catch (IOException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h3>\u4e0a\u9762\u7684\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2a\u8fde\u63a5\u5230\u672c\u673a\uff0c\u7aef\u53e3\u4e3a28888\u7684Socket\u5bf9\u8c61\uff1b\u518d\u4f7f\u7528getOutputStream()\u83b7\u53d6Socket\u5bf9\u8c61\u7684\u8f93\u51fa\u6d41\uff0c\u7528\u4e8e\u5f80\u670d\u52a1\u5668\u53d1\u9001\u4fe1\u606f\uff0c\u7136\u540e\u4f7f\u7528getInputStream()\u83b7\u53d6Socket\u5bf9\u8c61\u7684\u8f93\u5165\u6d41\uff0c\u8bfb\u53d6\u670d\u52a1\u5668\u8fd4\u56de\u7684\u6570\u636e\uff1b\u6700\u540e\u5173\u95ed\u8f93\u5165\/\u8f93\u51fa\u6d41\u548cSocket\u8fde\u63a5\uff0c\u91ca\u653e\u6240\u6709\u7684\u8d44\u6e90<\/h3>\n<h2>2.ServerSocket\u7c7b<\/h2>\n<h3>ServerSocket\u662f\u670d\u52a1\u5668\u5957\u63a5\u5b57\uff0c\u8fd0\u884c\u5728\u670d\u52a1\u5668\u7aef\uff0c\u901a\u8fc7\u6307\u5b9a\u7aef\u53e3\u4e3b\u52a8\u76d1\u542c\u6765\u81ea\u5ba2\u6237\u7aef\u7684Socket\u8fde\u63a5\uff0c\u5f53\u5ba2\u6237\u7aef\u53d1\u9001Socket\u8bf7\u6c42\u5e76\u4e0e\u670d\u52a1\u5668\u7aef\u5efa\u7acb\u8fde\u63a5\u65f6\uff0c\u670d\u52a1\u5668\u5c06\u9a8c\u8bc1\u5e76\u63a5\u53d7\u5ba2\u6237\u7aef\u7684Socket\uff0c\u4ece\u800c\u5efa\u7acb\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u865a\u62df\u94fe\u8def\uff0c\u4e00\u65e6\u4e24\u7aef\u7684\u5b9e\u4f53\u4e4b\u95f4\u5efa\u7acb\u4e86\u865a\u62df\u94fe\u8def\uff0c\u5c31\u53ef\u4ee5\u4e92\u76f8\u4f20\u9001\u6570\u636e\u3002<\/h3>\n<ul>\n<li>\u6784\u9020\u65b9\u6cd5\n<ul>\n<li>ServerSocket(int port)---- \u6839\u636e\u6307\u5b9a\u7aef\u53e3\u6765\u521b\u5efa\u4e00\u4e2aServerSocket\u5bf9\u8c61\uff1b<\/li>\n<li>ServerSocket(int port,int backlog)----\u521b\u5efa\u4e00\u4e2aServerSocket\u5bf9\u8c61\uff0c\u6307\u5b9a\u7aef\u53e3\u548c\u8fde\u63a5\u961f\u5217\u957f\u5ea6\uff0c\u6b64\u65f6\u589e\u52a0\u4e00\u4e2a\u7528\u6765\u6539\u53d8\u8fde\u63a5\u961f\u5217\u957f\u5ea6\u7684\u53c2\u6570backlog\uff1b<\/li>\n<li>ServerSocket(int port,int backlog,InetAddress localAddr)----\u521b\u5efa\u4e00\u4e2aServerSocket\u5bf9\u8c61\uff0c\u6307\u5b9a\u7aef\u53e3\uff0c\u8fde\u63a5\u961f\u5217\u957f\u5ea6\u548cIP\u5730\u5740\uff1b\u5f53\u673a\u5668\u62e5\u6709\u591a\u4e2aIP\u5730\u5740\u65f6\uff0c\u624d\u5141\u8bb8\u4f7f\u7528localAddr\u53c2\u6570\u6307\u5b9a\u5177\u4f53\u7684IP\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u6cd5<\/th>\n<th>\u529f\u80fd\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>public Socket accept()<\/td>\n<td>\u63a5\u53d7\u5ba2\u6237\u7aefSocket\u8fde\u63a5\u8bf7\u6c42\uff0c\u5e76\u8fd4\u56de \u4e00\u4e2a\u4e0e\u5ba2\u6237\u7aefSocket\u5bf9\u5e94\u7684Socket\u5b9e\u4f8b\uff1b\u8be5\u65b9\u6cd5\u662f\u4e00\u4e2a\u963b\u585e\u65b9\u6cd5\uff0c\u5982\u679c\u6ca1\u6709\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u53d1\u9001\u7684Socket\uff0c\u5219\u4e00\u76f4\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\uff0c\u7ebf\u7a0b\u4e5f\u4f1a\u88ab\u963b\u585e<\/td>\n<\/tr>\n<tr>\n<td>public InetAddress getInetAddress()<\/td>\n<td>\u8fd4\u56de\u5f53\u524dServerSocket\u5b9e\u4f8b\u7684\u5730\u5740\u4fe1\u606f<\/td>\n<\/tr>\n<tr>\n<td>public synchronized void close()<\/td>\n<td>\u5173\u95ed\u5f53\u524dSocket\u5b9e\u4f8b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\u5177\u4f53\u6b65\u9aa4\uff1a\n<ul>\n<li>\n<ol>\n<li>\u6839\u636e\u6307\u5b9a\u7684\u7aef\u53e3\u53f7\u6765\u5b9e\u4f8b\u5316\u4e00\u4e2aServerSocket\u5bf9\u8c61\uff1b<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u8c03\u7528serverSocket\u5bf9\u8c61\u7684accept()\u65b9\u6cd5\u63a5\u53d7\u5ba2\u6237\u7aef\u53d1\u9001\u7684Socket\u5bf9\u8c61\uff1b<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u8c03\u7528Socket\u5bf9\u8c61\u7684getInputStream()\/getOutputStream()\u65b9\u6cd5\u6765\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u4ea4\u4e92\u7684IO\u6d41<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u6839\u636e\u4e00\u5b9a\u7684\u534f\u8bae\u4ea4\u4e92\uff0c\u76f4\u5230\u5173\u95ed\u8fde\u63a5\uff1b<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u5173\u95ed\u670d\u52a1\u5668\u7aef\u7684Socket\uff1b<\/li>\n<\/ol>\n<\/li>\n<li>\n<ol>\n<li>\u56de\u5230\u7b2c2\u6b65\uff0c\u7ee7\u7eed\u76d1\u542c\u4e0b\u4e00\u6b21\u5ba2\u6237\u7aef\u53d1\u9001\u7684Socket\u8bf7\u6c42\u8fde\u63a5\uff1b <\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<pre><code class=\"Java\">package com.rain.demo;\n\nimport java.io.BufferedReader;\nimport java.io.IOException;\nimport java.io.InputStreamReader;\nimport java.io.PrintStream;\nimport java.net.ServerSocket;\nimport java.net.Socket;\n\n\/**\n * Created by w-pc on 2017\/03\/15.\n *\/\npublic class ServerSocketDemo extends Thread{\n    ServerSocket server;\n    int num = 0;\n    public ServerSocketDemo(){\n        try {\n            server = new ServerSocket(28888);\n        }catch (IOException e){\n            e.printStackTrace();\n        }\n        this.start();\n        System.out.println(\"Start.....\");\n    }\n    public void run(){\n        while (this.isAlive()){\n            try {\n                Socket socket = server.accept();\n                BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));\n                String line = br.readLine();\n                System.out.println(line);\n                PrintStream ps = new PrintStream(socket.getOutputStream());\n                ps.println(\"\u60a8\u662f\u7b2c\"+(++num)+\"\u4e2a\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u7528\u6237\uff01\");\n                ps.flush();\n                br.close();\n                ps.close();\n                socket.close();\n            }catch (IOException e){\n                e.printStackTrace();\n            }\n        }\n    }\n    public static void main(String[] args) {\n        new ServerSocketDemo();\n    }\n}\n\n<\/code><\/pre>\n<h3>\u4e0a\u8ff0\u4ee3\u7801\u670d\u52a1\u5668\u7aef\u662f\u4e00\u4e2a\u591a\u7ebf\u7a0b\u5e94\u7528\u7a0b\u5e8f\uff0c\u80fd\u4e3a\u591a\u4e2a\u5ba2\u6237\u63d0\u4f9b\u670d\u52a1\u3002\u5728ServerSocketDemo\u6784\u9020\u65b9\u6cd5\u4e2d\uff0c\u5148\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u76d1\u542c28888\u7aef\u53e3\u7684ServerSocket\u5bf9\u8c61\uff0c\u5728\u8c03\u7528this.start()\u65b9\u6cd5\u542f\u52a8\u7ebf\u7a0b\u3002\u5728\u7ebf\u7a0b\u7684run()\u65b9\u6cd5\u4e2d\uff0c\u5148\u8c03\u7528ServerSocket\u5bf9\u8c61\u7684accept()\u65b9\u6cd5\u6765\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684Socket\u5bf9\u8c61\uff0c\u518d\u4f7f\u7528getInputStream()\u83b7\u53d6Socket\u5bf9\u8c61\u7684\u8f93\u5165\u6d41\uff0c\u7528\u4e8e\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u4fe1\u606f\uff1b\u7136\u540e\u4f7f\u7528getOutputStream()\u83b7\u53d6Socket\u5bf9\u8c61\u7684\u8f93\u51fa\u6d41\uff0c\u5f80\u5ba2\u6237\u7aef\u53d1\u9001\u4fe1\u606f\uff1b\u6700\u540e\u5173\u95ed\u8f93\u5165\uff0c\u8f93\u51fa\u6d41\u548cSocket\u91ca\u653e\u6240\u6709\u7684\u8d44\u6e90\u3002<\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Java\u57fa\u4e8eTCP\u7684\u7f51\u7edc\u7f16\u7a0b 1.Socket\u7c7b \u6784\u9020\u65b9\u6cd5 Socket(InetAddress | Stri\u2026 <span class=\"read-more\"><a href=\"http:\/\/rain1024.com\/index.php\/2017\/03\/15\/java-article66\/\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":490,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"footnotes":""},"categories":[31],"tags":[46,59,68],"class_list":["post-670","post","type-post","status-publish","format-aside","has-post-thumbnail","hentry","category-java","tag-java","tag-socket","tag-68","post_format-post-format-aside"],"_links":{"self":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/comments?post=670"}],"version-history":[{"count":1,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/670\/revisions"}],"predecessor-version":[{"id":1471,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/670\/revisions\/1471"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/media\/490"}],"wp:attachment":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/media?parent=670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/categories?post=670"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/tags?post=670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}