=Start=<\/p>\n
\u60f3\u8f83\u4e3a\u7cfb\u7edf\u6df1\u5165\u7684\u4e86\u89e3\u4e00\u4e0b\u4ec0\u4e48\u662f\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\uff0c\u4ee5\u53ca\u4e3a\u4ec0\u4e48\u8981\u7528\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\uff0c\u518d\u52a0\u4e0a\u4e00\u4e9b\u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\u7684\u8bf4\u660e\u6765\u5e94\u7528\u4e00\u4e0b\u524d\u9762\u6240\u5b66\u7684\u5185\u5bb9\u4ee5\u52a0\u6df1\u7406\u89e3\u3002<\/p>\n
\u4e8c\u8fdb\u5236\u4e32\uff1a\u5e8f\u5217\u5316\u6240\u751f\u6210\u7684\u4e8c\u8fdb\u5236\u4e32\u6307\u7684\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u4e00\u5757\u6570\u636e\u3002C\/C++\u8bed\u8a00\u5177\u6709\u5185\u5b58\u64cd\u4f5c\u7b26\uff0c\u6240\u4ee5\u4e8c\u8fdb\u5236\u4e32\u7684\u6982\u5ff5\u5bb9\u6613\u7406\u89e3\uff0c\u4f8b\u5982\uff0cC\/C++\u8bed\u8a00\u7684\u5b57\u7b26\u4e32\u53ef\u4ee5\u76f4\u63a5\u88ab\u4f20\u8f93\u5c42\u4f7f\u7528\uff0c\u56e0\u4e3a\u5176\u672c\u8d28\u4e0a\u5c31\u662f\u4ee5’\\0’\u7ed3\u5c3e\u7684\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u4e8c\u8fdb\u5236\u4e32\u3002<\/span><\/strong>\u5728Java\u8bed\u8a00\u91cc\u9762\uff0c\u4e8c\u8fdb\u5236\u4e32\u7684\u6982\u5ff5\u5bb9\u6613\u548cString\u6df7\u6dc6\u3002\u5b9e\u9645\u4e0aString \u662fJava\u7684\u4e00\u7b49\u516c\u6c11\uff0c\u662f\u4e00\u79cd\u7279\u6b8a\u5bf9\u8c61\uff08Object\uff09\u3002\u5bf9\u4e8e\u8de8\u8bed\u8a00\u95f4\u7684\u901a\u8baf\uff0c\u5e8f\u5217\u5316\u540e\u7684\u6570\u636e\u5f53\u7136\u4e0d\u80fd\u662f\u67d0\u79cd\u8bed\u8a00\u7684\u7279\u6b8a\u6570\u636e\u7c7b\u578b\u3002\u4e8c\u8fdb\u5236\u4e32\u5728Java\u91cc\u9762\u6240\u6307\u7684\u662fbyte[]\uff0cbyte\u662fJava\u76848\u4e2d\u539f\u751f\u6570\u636e\u7c7b\u578b\u4e4b\u4e00\uff08Primitive data types\uff09\u3002<\/strong><\/p>\n \u4e92\u8054\u7f51\u7684\u4ea7\u751f\u5e26\u6765\u4e86\u673a\u5668\u95f4\u901a\u8baf\u7684\u9700\u6c42\uff0c\u800c\u4e92\u8054\u901a\u8baf\u7684\u53cc\u65b9\u9700\u8981\u91c7\u7528\u7ea6\u5b9a\u7684\u534f\u8bae\uff0c\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u5c5e\u4e8e\u901a\u8baf\u534f\u8bae\u7684\u4e00\u90e8\u5206\u3002<\/strong><\/span><\/p>\n \u5728OSI\u4e03\u5c42\u534f\u8bae\u6a21\u578b\u4e2d\u5c55\u73b0\u5c42\uff08Presentation Layer\uff09\u7684\u4e3b\u8981\u529f\u80fd\u662f\u628a\u5e94\u7528\u5c42\u7684\u5bf9\u8c61\u8f6c\u6362\u6210\u4e00\u6bb5\u8fde\u7eed\u7684\u4e8c\u8fdb\u5236\u4e32\uff0c\u6216\u8005\u53cd\u8fc7\u6765\uff0c\u628a\u4e8c\u8fdb\u5236\u4e32\u8f6c\u6362\u6210\u5e94\u7528\u5c42\u7684\u5bf9\u8c61–\u8fd9\u4e24\u4e2a\u529f\u80fd\u5c31\u662f\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u3002\u4e00\u822c\u800c\u8a00\uff0cTCP\/IP\u534f\u8bae\u7684\u5e94\u7528\u5c42\u5bf9\u5e94\u4e0eOSI\u4e03\u5c42\u534f\u8bae\u6a21\u578b\u7684\u5e94\u7528\u5c42\uff0c\u5c55\u793a\u5c42\u548c\u4f1a\u8bdd\u5c42\uff0c\u6240\u4ee5\u5e8f\u5217\u5316\u534f\u8bae\u5c5e\u4e8eTCP\/IP\u534f\u8bae\u5e94\u7528\u5c42\u7684\u4e00\u90e8\u5206\u3002<\/span><\/p>\n \u5e8f\u5217\u5316\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e5f\u4f1a\u6709\u666e\u904d\u5e94\u7528\uff0c\u6bd4\u5982\u5927\u578bWeb\u5e94\u7528\uff0c\u5f53\u5b58\u5728\u77ac\u95f4\u7684\u9ad8\u5e76\u53d1\u767b\u5f55\u6d8c\u6765\u7684\u5927\u91cfSession\u7684\u60c5\u51b5\u65f6\uff0c\u5982\u679c\u4f7f\u7528\u5e8f\u5217\u5316\u6280\u672f\u5c06\u8fd9\u4e9bSession\u4fdd\u5b58\u5728\u672c\u5730\uff0c\u9700\u8981\u4f7f\u7528\u65f6\u518d\u53cd\u5e8f\u5217\u5316\uff0c\u5c31\u4f1a\u8282\u7701\u5927\u91cf\u7684\u5185\u5b58\u8d44\u6e90\u3002<\/p>\n \u901a\u7528\u6027\uff08\u6280\u672f\u5c42\u9762\u8981\u652f\u6301\u8de8\u5e73\u53f0\u3001\u8de8\u8bed\u8a00\uff1b\u6d41\u884c\u7a0b\u5ea6\u8981\u9ad8\uff09\uff1b COM \u5728Java\u4e2d\uff0c\u5e8f\u5217\u5316\u7684\u5b9e\u73b0\u9700\u8981\u6ee1\u8db3\u4ee5\u4e0b\u51e0\u4e2a\u8981\u6c42\uff1a<\/span><\/strong><\/p>\n 1\u3001\u7c7b\u9700\u8981\u5b9e\u73b0Serializable\u63a5\u53e3<\/span> Java \u4e2d\u901a\u8fc7 ObjectOutputStream \u7c7b\u7684 writeObject() \u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u5e8f\u5217\u5316\u3002\u53cd\u5e8f\u5217\u5316\u662f\u6307\u628a\u5b57\u8282\u5e8f\u5217\u6062\u590d\u4e3a Java \u5bf9\u8c61\u7684\u8fc7\u7a0b\uff0c ObjectInputStream \u7c7b\u7684 readObject() \u65b9\u6cd5\u7528\u4e8e\u53cd\u5e8f\u5217\u5316\u3002<\/p>\n0x02 \u4e3a\u4ec0\u4e48\u8981\u6709\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\uff1f<\/h4>\n
0x03 \u5e8f\u5217\u5316\u534f\u8bae\u7279\u6027<\/h4>\n
\n\u9c81\u68d2\u6027\uff08\u6210\u719f\u5ea6\u3001\u7a33\u5b9a\u6027\uff09\uff1b
\n\u53ef\u8c03\u8bd5\u6027\uff1b
\n\u6027\u80fd\uff1b<\/p>\n0x04 \u51e0\u79cd\u5e38\u89c1\u7684\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u534f\u8bae<\/h4>\n
\nCORBA
\nXML&SOAP
\nJSON\uff08Javascript Object Notation\uff09
\nThrift
\nProtobuf
\nAvro<\/p>\n0x05 \u53cd\u5e8f\u5217\u5316\u76f8\u5173\u6f0f\u6d1e\u8bf4\u660e<\/h4>\n
\n2\u3001\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u4e24\u7aefserialVersionUID\u9700\u8981\u76f8\u540c\uff0c\u5982\u679c\u6ca1\u6709\u8bbe\u7f6eUID\uff0cJVM\u4f1a\u6839\u636e\u5f53\u524d\u7cfb\u7edf\u65f6\u95f4\u81ea\u52a8\u751f\u6210UID\u7684\u503c
\n3\u3001Transient\u5173\u952e\u5b57\uff0c\u88abtransient\u5173\u952e\u5b57\u4fee\u9970\u7684\u5b57\u6bb5\u65e0\u6cd5\u88ab\u5e8f\u5217\u5316<\/span><\/p>\n\u5e8f\u5217\u5316\u3001\u53cd\u5e8f\u5217\u5316\u6837\u4f8b\u4ee3\u7801\uff1a<\/h5>\n
\n\n
\n \n \/\/\u4e00\u4e2a\u5b9e\u73b0\u4e86 Serializable \u63a5\u53e3\u7684\u7c7b<\/code><\/div>\npublic<\/code>\u00a0class<\/code>\u00a0Employee\u00a0<\/code>implements<\/code>\u00a0java.io.Serializable<\/code><\/div>\n{<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>public<\/code>\u00a0String name;<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>public<\/code>\u00a0String identify;<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>public<\/code>\u00a0void<\/code>\u00a0mailCheck() {<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>System.out.println(<\/code>\"This is the \"<\/code>\u00a0+\u00a0<\/code>this<\/code>.identify +\u00a0<\/code>\" of our company\"<\/code>);<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>}<\/code><\/div>\n}<\/code><\/div>\n\/\/ \u5b9e\u73b0\u5e8f\u5217\u5316\u64cd\u4f5c\u7684\u7c7b SerializeDemo<\/code><\/div>\nimport<\/code>\u00a0java.io.*;\u00a0\u00a0\u00a0<\/code>\/\/\u53cd\u5e8f\u5217\u5316\u6240\u9700\u7c7b\u5728io\u5305\u4e2d<\/code><\/div>\npublic<\/code>\u00a0class<\/code>\u00a0SerializeDemo<\/code><\/div>\n{<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>public<\/code>\u00a0static<\/code>\u00a0void<\/code>\u00a0main(String [] args)<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>{<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>Employee e =\u00a0<\/code>new<\/code>\u00a0Employee();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>e.name =\u00a0<\/code>\"\u5458\u5de5\u7532\"<\/code>;<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>e.identify =\u00a0<\/code>\"General staff\"<\/code>;<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>try<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>{<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ \u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u8f93\u5165\u6d41<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FileOutputStream fileOut =\u00a0<\/code>new<\/code>\u00a0FileOutputStream(<\/code>\"\/tmp\/employee1.db\"<\/code>);<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ \u5efa\u7acb\u5bf9\u8c61\u8f93\u5165\u6d41<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ObjectOutputStream out =\u00a0<\/code>new<\/code>\u00a0ObjectOutputStream(fileOut);<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ \u8f93\u51fa\u53cd\u5e8f\u5217\u5316\u5bf9\u8c61<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>out.writeObject(e);<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>out.close();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>fileOut.close();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>System.out.printf(<\/code>\"Serialized data is saved in \/tmp\/employee1.db\"<\/code>);<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>}<\/code>catch<\/code>(IOException i)<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>{<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>i.printStackTrace();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>}<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>}<\/code><\/div>\n}<\/code><\/div>\n\/\/ \u5b9e\u73b0\u53cd\u5e8f\u5217\u5316\u64cd\u4f5c\u7684\u7c7b DeserializeDemo<\/code><\/div>\nimport<\/code>\u00a0java.io.*;\u00a0\u00a0\u00a0<\/code>\/\/\u53cd\u5e8f\u5217\u5316\u6240\u9700\u7c7b\u5728io\u5305\u4e2d<\/code><\/div>\npublic<\/code>\u00a0class<\/code>\u00a0DeserializeDemo<\/code><\/div>\n{<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>public<\/code>\u00a0static<\/code>\u00a0void<\/code>\u00a0main(String [] args)<\/code><\/div>\n\u00a0\u00a0\u00a0<\/code>{<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>Employee e =\u00a0<\/code>null<\/code>;<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>try<\/code>\u00a0{<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ \u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u8f93\u5165\u6d41<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FileInputStream fileIn =\u00a0<\/code>new<\/code>\u00a0FileInputStream(<\/code>\"\/tmp\/employee1.db\"<\/code>);<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ \u5efa\u7acb\u5bf9\u8c61\u8f93\u5165\u6d41<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ObjectInputStream in =\u00a0<\/code>new<\/code>\u00a0ObjectInputStream(fileIn);<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ \u8bfb\u53d6\u5bf9\u8c61<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>e = (Employee) in.readObject();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>in.close();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>fileIn.close();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>}\u00a0<\/code>catch<\/code>(IOException i) {<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>i.printStackTrace();<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>return<\/code>;<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>}\u00a0<\/code>catch<\/code>(ClassNotFoundException c) {<\/code><\/div>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>System.out.println(<\/code>\"Employee class not found\"<\/code>);<\/code><\/div>\n