{"id":10006091,"date":"2022-08-02T18:45:10","date_gmt":"2022-08-02T10:45:10","guid":{"rendered":"https:\/\/ityet.com\/?p=10006091"},"modified":"2022-08-02T18:45:10","modified_gmt":"2022-08-02T10:45:10","slug":"%e9%9d%a2%e8%af%95%e5%ae%98%e9%97%ae%ef%bc%9ajava-%e5%ba%8f%e5%88%97%e5%8c%96%e5%92%8c%e5%8f%8d%e5%ba%8f%e5%88%97%e5%8c%96%e4%b8%ba%e4%bb%80%e4%b9%88%e8%a6%81%e5%ae%9e%e7%8e%b0-serializable-%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006091","title":{"rendered":"\u9762\u8bd5\u5b98\u95ee\uff1aJava \u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4e3a\u4ec0\u4e48\u8981\u5b9e\u73b0 Serializable \u63a5\u53e3\uff1f\u4ec0\u4e48\u9b3c\uff1f\uff1f"},"content":{"rendered":"<p>\u6765\u6e90: <a href=\"https:\/\/link.segmentfault.com\/?enc=bdAZ8%2FBOVCslyGIXWkdu9g%3D%3D.7%2FATnezfR%2B%2F4ng6y5dkgll%2BftQwpaYh1n7caWVv8delTs7qU5LW8f3rNv7mkhfYP\" rel=\"nofollow\">https:\/\/blog.csdn.net\/litianx&#8230;<\/a><\/p>\n<p><strong>\u524d\u8a00<\/strong><\/p>\n<p>\u6700\u8fd1\u516c\u53f8\u7684\u5728\u505a\u670d\u52a1\u5316, \u9700\u8981\u628a\u6240\u6709model\u5305\u91cc\u7684\u7c7b\u90fd\u5b9e\u73b0Serializable\u63a5\u53e3, \u540c\u65f6\u8fd8\u8981\u663e\u793a\u6307\u5b9aserialVersionUID\u7684\u503c. \u542c\u5230\u8fd9\u4e2a\u9700\u6c42, \u6211\u8111\u6d77\u91cc\u5c31\u7a81\u7136\u51fa\u73b0\u4e86\u597d\u51e0\u4e2a\u95ee\u9898, \u6bd4\u5982\u8bf4:<\/p>\n<ul>\n<li>\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u662f\u4ec0\u4e48?<\/li>\n<li>\u5b9e\u73b0\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4e3a\u4ec0\u4e48\u8981\u5b9e\u73b0Serializable\u63a5\u53e3?<\/li>\n<li>\u5b9e\u73b0Serializable\u63a5\u53e3\u5c31\u7b97\u4e86, \u4e3a\u4ec0\u4e48\u8fd8\u8981\u663e\u793a\u6307\u5b9aserialVersionUID\u7684\u503c?<\/li>\n<li>\u6211\u8981\u4e3aserialVersionUID\u6307\u5b9a\u4e2a\u4ec0\u4e48\u503c?<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u6211\u4eec\u6765\u4e00\u4e00\u89e3\u7b54\u8fd9\u51e0\u4e2a\u95ee\u9898.<\/p>\n<h2><strong>\u6b63\u6587<\/strong><\/h2>\n<hr>\n<h4><strong>\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316<\/strong><\/h4>\n<ul>\n<li>\u5e8f\u5217\u5316\uff1a\u628a\u5bf9\u8c61\u8f6c\u6362\u4e3a\u5b57\u8282\u5e8f\u5217\u7684\u8fc7\u7a0b\u79f0\u4e3a\u5bf9\u8c61\u7684\u5e8f\u5217\u5316.<\/li>\n<li>\u53cd\u5e8f\u5217\u5316\uff1a\u628a\u5b57\u8282\u5e8f\u5217\u6062\u590d\u4e3a\u5bf9\u8c61\u7684\u8fc7\u7a0b\u79f0\u4e3a\u5bf9\u8c61\u7684\u53cd\u5e8f\u5217\u5316.<\/li>\n<\/ul>\n<h4><strong>\u4ec0\u4e48\u65f6\u5019\u9700\u8981\u7528\u5230\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u5462?<\/strong><\/h4>\n<hr>\n<p>\u5f53\u6211\u4eec\u53ea\u5728\u672c\u5730JVM\u91cc\u8fd0\u884c\u4e0bJava\u5b9e\u4f8b, \u8fd9\u4e2a\u65f6\u5019\u662f\u4e0d\u9700\u8981\u4ec0\u4e48\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u7684, \u4f46\u5f53\u6211\u4eec\u9700\u8981\u5c06\u5185\u5b58\u4e2d\u7684\u5bf9\u8c61\u6301\u4e45\u5316\u5230\u78c1\u76d8, \u6570\u636e\u5e93\u4e2d\u65f6, \u5f53\u6211\u4eec\u9700\u8981\u4e0e\u6d4f\u89c8\u5668\u8fdb\u884c\u4ea4\u4e92\u65f6, \u5f53\u6211\u4eec\u9700\u8981\u5b9e\u73b0RPC\u65f6, \u8fd9\u4e2a\u65f6\u5019\u5c31\u9700\u8981\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4e86.<\/p>\n<p>\u524d\u4e24\u4e2a\u9700\u8981\u7528\u5230\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u7684\u573a\u666f, \u662f\u4e0d\u662f\u8ba9\u6211\u4eec\u6709\u4e00\u4e2a\u5f88\u5927\u7684\u7591\u95ee? \u6211\u4eec\u5728\u4e0e\u6d4f\u89c8\u5668\u4ea4\u4e92\u65f6, \u8fd8\u6709\u5c06\u5185\u5b58\u4e2d\u7684\u5bf9\u8c61\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u4e2d\u65f6, \u597d\u50cf\u90fd\u6ca1\u6709\u53bb\u8fdb\u884c\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316, \u56e0\u4e3a\u6211\u4eec\u90fd\u6ca1\u6709\u5b9e\u73b0Serializable\u63a5\u53e3, \u4f46\u4e00\u76f4\u6b63\u5e38\u8fd0\u884c.<\/p>\n<p>\u4e0b\u9762\u5148\u7ed9\u51fa\u7ed3\u8bba:<\/p>\n<p><strong>\u53ea\u8981\u6211\u4eec\u5bf9\u5185\u5b58\u4e2d\u7684\u5bf9\u8c61\u8fdb\u884c\u6301\u4e45\u5316\u6216\u7f51\u7edc\u4f20\u8f93, \u8fd9\u4e2a\u65f6\u5019\u90fd\u9700\u8981\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316.<\/strong><\/p>\n<p>\u7406\u7531:<\/p>\n<p>\u670d\u52a1\u5668\u4e0e\u6d4f\u89c8\u5668\u4ea4\u4e92\u65f6\u771f\u7684\u6ca1\u6709\u7528\u5230Serializable\u63a5\u53e3\u5417? JSON\u683c\u5f0f\u5b9e\u9645\u4e0a\u5c31\u662f\u5c06\u4e00\u4e2a\u5bf9\u8c61\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32, \u6240\u4ee5\u670d\u52a1\u5668\u4e0e\u6d4f\u89c8\u5668\u4ea4\u4e92\u65f6\u7684\u6570\u636e\u683c\u5f0f\u5176\u5b9e\u662f\u5b57\u7b26\u4e32, \u6211\u4eec\u6765\u770b\u6765String\u7c7b\u578b\u7684\u6e90\u7801:<\/p>\n<pre><code>public final class String\n    implements java.io.Serializable, Comparable&lt;String&gt;, CharSequence {\n    \/** The value is used for character storage. *\/\n    private final char value[];\n\n    \/** Cache the hash code for the string *\/\n    private int hash; \/\/ Default to 0\n\n    \/** use serialVersionUID from JDK 1.0.2 for interoperability *\/\n    private static final long serialVersionUID = -6849794470754667710L;\n\n    ......\n}<\/code><\/pre>\n<p>String\u7c7b\u578b\u5b9e\u73b0\u4e86Serializable\u63a5\u53e3, \u5e76\u663e\u793a\u6307\u5b9aserialVersionUID\u7684\u503c.<\/p>\n<p>\u7136\u540e\u6211\u4eec\u518d\u6765\u770b\u5bf9\u8c61\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u4e2d\u65f6\u7684\u60c5\u51b5, Mybatis\u6570\u636e\u5e93\u6620\u5c04\u6587\u4ef6\u91cc\u7684insert\u4ee3\u7801:<\/p>\n<pre><code>&lt;insert id=&quot;insertUser&quot; parameterType=&quot;org.tyshawn.bean.User&quot;&gt;\n    INSERT INTO t_user(name, age) VALUES (#{name}, #{age})\n&lt;\/insert&gt;<\/code><\/pre>\n<p>\u5b9e\u9645\u4e0a\u6211\u4eec\u5e76\u4e0d\u662f\u5c06\u6574\u4e2a\u5bf9\u8c61\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u4e2d, \u800c\u662f\u5c06\u5bf9\u8c61\u4e2d\u7684\u5c5e\u6027\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u4e2d, \u800c\u8fd9\u4e9b\u5c5e\u6027\u90fd\u662f\u5b9e\u73b0\u4e86Serializable\u63a5\u53e3\u7684\u57fa\u672c\u5c5e\u6027.<\/p>\n<h4><strong>\u5b9e\u73b0\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4e3a\u4ec0\u4e48\u8981\u5b9e\u73b0Serializable\u63a5\u53e3?<\/strong><\/h4>\n<hr>\n<p>\u5728Java\u4e2d\u5b9e\u73b0\u4e86Serializable\u63a5\u53e3\u540e, JVM\u4f1a\u5728\u5e95\u5c42\u5e2e\u6211\u4eec\u5b9e\u73b0\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316, \u5982\u679c\u6211\u4eec\u4e0d\u5b9e\u73b0Serializable\u63a5\u53e3, \u90a3\u81ea\u5df1\u53bb\u5199\u4e00\u5957\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4ee3\u7801\u4e5f\u884c, \u81f3\u4e8e\u5177\u4f53\u600e\u4e48\u5199, Google\u4e00\u4e0b\u4f60\u5c31\u77e5\u9053\u4e86\u3002<\/p>\n<h4><strong>\u5b9e\u73b0Serializable\u63a5\u53e3\u5c31\u7b97\u4e86, \u4e3a\u4ec0\u4e48\u8fd8\u8981\u663e\u793a\u6307\u5b9aserialVersionUID\u7684\u503c?<\/strong><\/h4>\n<hr>\n<p>\u5982\u679c\u4e0d\u663e\u793a\u6307\u5b9aserialVersionUID, JVM\u5728\u5e8f\u5217\u5316\u65f6\u4f1a\u6839\u636e\u5c5e\u6027\u81ea\u52a8\u751f\u6210\u4e00\u4e2aserialVersionUID, \u7136\u540e\u4e0e\u5c5e\u6027\u4e00\u8d77\u5e8f\u5217\u5316, \u518d\u8fdb\u884c\u6301\u4e45\u5316\u6216\u7f51\u7edc\u4f20\u8f93. \u5728\u53cd\u5e8f\u5217\u5316\u65f6, JVM\u4f1a\u518d\u6839\u636e\u5c5e\u6027\u81ea\u52a8\u751f\u6210\u4e00\u4e2a\u65b0\u7248serialVersionUID, \u7136\u540e\u5c06\u8fd9\u4e2a\u65b0\u7248serialVersionUID\u4e0e\u5e8f\u5217\u5316\u65f6\u751f\u6210\u7684\u65e7\u7248serialVersionUID\u8fdb\u884c\u6bd4\u8f83, \u5982\u679c\u76f8\u540c\u5219\u53cd\u5e8f\u5217\u5316\u6210\u529f, \u5426\u5219\u62a5\u9519.<\/p>\n<p>\u5982\u679c\u663e\u793a\u6307\u5b9a\u4e86serialVersionUID, JVM\u5728\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u65f6\u4ecd\u7136\u90fd\u4f1a\u751f\u6210\u4e00\u4e2aserialVersionUID, \u4f46\u503c\u4e3a\u6211\u4eec\u663e\u793a\u6307\u5b9a\u7684\u503c, \u8fd9\u6837\u5728\u53cd\u5e8f\u5217\u5316\u65f6\u65b0\u65e7\u7248\u672c\u7684serialVersionUID\u5c31\u4e00\u81f4\u4e86.<\/p>\n<p>\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d, \u4e0d\u663e\u793a\u6307\u5b9aserialVersionUID\u7684\u60c5\u51b5\u4f1a\u5bfc\u81f4\u4ec0\u4e48\u95ee\u9898? \u5982\u679c\u6211\u4eec\u7684\u7c7b\u5199\u5b8c\u540e\u4e0d\u518d\u4fee\u6539, \u90a3\u5f53\u7136\u4e0d\u4f1a\u6709\u95ee\u9898, \u4f46\u8fd9\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u662f\u4e0d\u53ef\u80fd\u7684, \u6211\u4eec\u7684\u7c7b\u4f1a\u4e0d\u65ad\u8fed\u4ee3, \u4e00\u65e6\u7c7b\u88ab\u4fee\u6539\u4e86, \u90a3\u65e7\u5bf9\u8c61\u53cd\u5e8f\u5217\u5316\u5c31\u4f1a\u62a5\u9519. \u6240\u4ee5\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d, \u6211\u4eec\u90fd\u4f1a\u663e\u793a\u6307\u5b9a\u4e00\u4e2aserialVersionUID, \u503c\u662f\u591a\u5c11\u65e0\u6240\u8c13, \u53ea\u8981\u4e0d\u53d8\u5c31\u884c.<\/p>\n<p>\u5199\u4e2a\u5b9e\u4f8b\u6d4b\u8bd5\u4e0b:<\/p>\n<p>(1) User\u7c7b<\/p>\n<p>\u4e0d\u663e\u793a\u6307\u5b9aserialVersionUID.<\/p>\n<pre><code>public class User implements Serializable {\n\n    private String name;\n    private Integer age;\n\n    public String getName() {\n        return name;\n    }\n\n    public void setName(String name) {\n        this.name = name;\n    }\n\n    public Integer getAge() {\n        return age;\n    }\n\n    public void setAge(Integer age) {\n        this.age = age;\n    }\n\n    @Override\n    public String toString() {\n        return &quot;User{&quot; +\n                &quot;name='&quot; + name + '\/'' +\n                &quot;, age=&quot; + age +\n                '}';\n    }\n}<\/code><\/pre>\n<p>(2) \u6d4b\u8bd5\u7c7b<\/p>\n<p>\u5148\u8fdb\u884c\u5e8f\u5217\u5316, \u518d\u8fdb\u884c\u53cd\u5e8f\u5217\u5316.<\/p>\n<pre><code>public class SerializableTest {\n\n    private static void serialize(User user) throws Exception {\n        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File(&quot;D:\/\/111.txt&quot;)));\n        oos.writeObject(user);\n        oos.close();\n    }\n\n    private static User deserialize() throws Exception{\n        ObjectInputStream ois = new ObjectInputStream(new FileInputStream(new File(&quot;D:\/\/111.txt&quot;)));\n        return (User) ois.readObject();\n    }\n\n\n    public static void main(String[] args) throws Exception {\n        User user = new User();\n        user.setName(&quot;tyshawn&quot;);\n        user.setAge(18);\n        System.out.println(&quot;\u5e8f\u5217\u5316\u524d\u7684\u7ed3\u679c: &quot; + user);\n\n        serialize(user);\n\n        User dUser = deserialize();\n        System.out.println(&quot;\u53cd\u5e8f\u5217\u5316\u540e\u7684\u7ed3\u679c: &quot;+ dUser);\n    }\n}<\/code><\/pre>\n<p>(3) \u7ed3\u679c<\/p>\n<p>\u5148\u6ce8\u91ca\u6389\u53cd\u5e8f\u5217\u5316\u4ee3\u7801, \u6267\u884c\u5e8f\u5217\u5316\u4ee3\u7801, \u7136\u540eUser\u7c7b\u65b0\u589e\u4e00\u4e2a\u5c5e\u6027sex<\/p>\n<pre><code>public class User implements Serializable {\n\n    private String name;\n    private Integer age;\n    private String sex;\n\n    public String getName() {\n        return name;\n    }\n\n    public void setName(String name) {\n        this.name = name;\n    }\n\n    public Integer getAge() {\n        return age;\n    }\n\n    public void setAge(Integer age) {\n        this.age = age;\n    }\n\n    public String getSex() {\n        return sex;\n    }\n\n    public void setSex(String sex) {\n        this.sex = sex;\n    }\n\n    @Override\n    public String toString() {\n        return &quot;User{&quot; +\n                &quot;name='&quot; + name + '\/'' +\n                &quot;, age=&quot; + age +\n                &quot;, sex='&quot; + sex + '\/'' +\n                '}';\n    }\n}<\/code><\/pre>\n<p>\u518d\u6ce8\u91ca\u6389\u5e8f\u5217\u5316\u4ee3\u7801\u6267\u884c\u53cd\u5e8f\u5217\u5316\u4ee3\u7801, \u6700\u540e\u7ed3\u679c\u5982\u4e0b:<\/p>\n<blockquote><p>\u5e8f\u5217\u5316\u524d\u7684\u7ed3\u679c: User{name=&#8217;tyshawn&#8217;, age=18}<br \/>Exception in thread &#8220;main&#8221; java.io.InvalidClassException: org.tyshawn.SerializeAndDeserialize.User; local class incompatible: stream classdesc serialVersionUID = 1035612825366363028, local class serialVersionUID = -1830850955895931978<\/p><\/blockquote>\n<p>\u62a5\u9519\u7ed3\u679c\u4e3a\u5e8f\u5217\u5316\u4e0e\u53cd\u5e8f\u5217\u5316\u4ea7\u751f\u7684serialVersionUID\u4e0d\u4e00\u81f4.<\/p>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u5728\u4e0a\u9762User\u7c7b\u7684\u57fa\u7840\u4e0a\u663e\u793a\u6307\u5b9a\u4e00\u4e2aserialVersionUID<\/p>\n<pre><code>private static final long serialVersionUID = 1L;<\/code><\/pre>\n<p>\u518d\u6267\u884c\u4e0a\u8ff0\u6b65\u9aa4, \u6d4b\u8bd5\u7ed3\u679c\u5982\u4e0b:<\/p>\n<blockquote><p>\u5e8f\u5217\u5316\u524d\u7684\u7ed3\u679c: User{name=&#8217;tyshawn&#8217;, age=18}<br \/>\u53cd\u5e8f\u5217\u5316\u540e\u7684\u7ed3\u679c: User{name=&#8217;tyshawn&#8217;, age=18, sex=&#8217;null&#8217;}<\/p><\/blockquote>\n<p>\u663e\u793a\u6307\u5b9aserialVersionUID\u540e\u5c31\u89e3\u51b3\u4e86\u5e8f\u5217\u5316\u4e0e\u53cd\u5e8f\u5217\u5316\u4ea7\u751f\u7684serialVersionUID\u4e0d\u4e00\u81f4\u7684\u95ee\u9898.<\/p>\n<h4><strong>Java\u5e8f\u5217\u5316\u7684\u5176\u4ed6\u7279\u6027<\/strong><\/h4>\n<hr>\n<p>\u5148\u8bf4\u7ed3\u8bba, \u88abtransient\u5173\u952e\u5b57\u4fee\u9970\u7684\u5c5e\u6027\u4e0d\u4f1a\u88ab\u5e8f\u5217\u5316, static\u5c5e\u6027\u4e5f\u4e0d\u4f1a\u88ab\u5e8f\u5217\u5316.<\/p>\n<p>\u6211\u4eec\u6765\u6d4b\u8bd5\u4e0b\u8fd9\u4e2a\u7ed3\u8bba:<\/p>\n<p>(1) User\u7c7b<\/p>\n<pre><code>public class User implements Serializable {\n    private static final long serialVersionUID = 1L;\n\n    private String name;\n    private Integer age;\n    private transient String sex;\n    private static String signature = &quot;\u4f60\u773c\u4e2d\u7684\u4e16\u754c\u5c31\u662f\u4f60\u81ea\u5df1\u7684\u6837\u5b50&quot;;\n\n    public String getName() {\n        return name;\n    }\n\n    public void setName(String name) {\n        this.name = name;\n    }\n\n    public Integer getAge() {\n        return age;\n    }\n\n    public void setAge(Integer age) {\n        this.age = age;\n    }\n\n    public String getSex() {\n        return sex;\n    }\n\n    public void setSex(String sex) {\n        this.sex = sex;\n    }\n\n    public static String getSignature() {\n        return signature;\n    }\n\n    public static void setSignature(String signature) {\n        User.signature = signature;\n    }\n\n    @Override\n    public String toString() {\n        return &quot;User{&quot; +\n                &quot;name='&quot; + name + '\/'' +\n                &quot;, age=&quot; + age +\n                &quot;, sex='&quot; + sex +'\/'' +\n                &quot;, signature='&quot; + signature + '\/'' +\n                '}';\n    }\n}<\/code><\/pre>\n<p>(2) \u6d4b\u8bd5\u7c7b<\/p>\n<pre><code>public class SerializableTest {\n\n    private static void serialize(User user) throws Exception {\n        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File(&quot;D:\/\/111.txt&quot;)));\n        oos.writeObject(user);\n        oos.close();\n    }\n\n    private static User deserialize() throws Exception{\n        ObjectInputStream ois = new ObjectInputStream(new FileInputStream(new File(&quot;D:\/\/111.txt&quot;)));\n        return (User) ois.readObject();\n    }\n\n\n    public static void main(String[] args) throws Exception {\n        User user = new User();\n        user.setName(&quot;tyshawn&quot;);\n        user.setAge(18);\n        user.setSex(&quot;man&quot;);\n        System.out.println(&quot;\u5e8f\u5217\u5316\u524d\u7684\u7ed3\u679c: &quot; + user);\n\n        serialize(user);\n\n        User dUser = deserialize();\n        System.out.println(&quot;\u53cd\u5e8f\u5217\u5316\u540e\u7684\u7ed3\u679c: &quot;+ dUser);\n    }\n}<\/code><\/pre>\n<p>(3) \u7ed3\u679c<\/p>\n<p>\u5148\u6ce8\u91ca\u6389\u53cd\u5e8f\u5217\u5316\u4ee3\u7801, \u6267\u884c\u5e8f\u5217\u5316\u4ee3\u7801, \u7136\u540e\u4fee\u6539User\u7c7bsignature = \u201c\u6211\u7684\u773c\u91cc\u53ea\u6709\u4f60\u201d, \u518d\u6ce8\u91ca\u6389\u5e8f\u5217\u5316\u4ee3\u7801\u6267\u884c\u53cd\u5e8f\u5217\u5316\u4ee3\u7801, \u6700\u540e\u7ed3\u679c\u5982\u4e0b:<\/p>\n<blockquote><p>\u5e8f\u5217\u5316\u524d\u7684\u7ed3\u679c: User{name=&#8217;tyshawn&#8217;, age=18, sex=&#8217;man&#8217;, signature=&#8217;\u4f60\u773c\u4e2d\u7684\u4e16\u754c\u5c31\u662f\u4f60\u81ea\u5df1\u7684\u6837\u5b50&#8217;}<br \/>\u53cd\u5e8f\u5217\u5316\u540e\u7684\u7ed3\u679c: User{name=&#8217;tyshawn&#8217;, age=18, sex=&#8217;null&#8217;, signature=&#8217;\u6211\u7684\u773c\u91cc\u53ea\u6709\u4f60&#8217;}<\/p><\/blockquote>\n<h4><strong>static\u5c5e\u6027\u4e3a\u4ec0\u4e48\u4e0d\u4f1a\u88ab\u5e8f\u5217\u5316?<\/strong><\/h4>\n<hr>\n<p>\u56e0\u4e3a\u5e8f\u5217\u5316\u662f\u9488\u5bf9\u5bf9\u8c61\u800c\u8a00\u7684, \u800cstatic\u5c5e\u6027\u4f18\u5148\u4e8e\u5bf9\u8c61\u5b58\u5728, \u968f\u7740\u7c7b\u7684\u52a0\u8f7d\u800c\u52a0\u8f7d, \u6240\u4ee5\u4e0d\u4f1a\u88ab\u5e8f\u5217\u5316.<\/p>\n<p>\u770b\u5230\u8fd9\u4e2a\u7ed3\u8bba, \u662f\u4e0d\u662f\u6709\u4eba\u4f1a\u95ee, serialVersionUID\u4e5f\u88abstatic\u4fee\u9970, \u4e3a\u4ec0\u4e48serialVersionUID\u4f1a\u88ab\u5e8f\u5217\u5316? \u5176\u5b9eserialVersionUID\u5c5e\u6027\u5e76\u6ca1\u6709\u88ab\u5e8f\u5217\u5316, JVM\u5728\u5e8f\u5217\u5316\u5bf9\u8c61\u65f6\u4f1a\u81ea\u52a8\u751f\u6210\u4e00\u4e2aserialVersionUID, \u7136\u540e\u5c06\u6211\u4eec\u663e\u793a\u6307\u5b9a\u7684serialVersionUID\u5c5e\u6027\u503c\u8d4b\u7ed9\u81ea\u52a8\u751f\u6210\u7684serialVersionUID.<\/p>\n<hr>\n<p><strong>\u8fd8\u6709\u4ec0\u4e48\u6280\u672f\u95ee\u9898\uff1f\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00~<\/strong><\/p>\n<p><strong>\u8fd1\u671f\u70ed\u6587\u63a8\u8350\uff1a<\/strong><\/p>\n<p>1.<a href=\"https:\/\/link.segmentfault.com\/?enc=V588Gbiyy%2F9H6OVGdkeLcQ%3D%3D.iWGoTfG14QLh799QNIjW5q%2BrskutmHtkCAmuxq841bA%3D\" rel=\"nofollow\">1,000+ \u9053 Java\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6574\u7406(2022\u6700\u65b0\u7248)<\/a><\/p>\n<p>2.<a href=\"https:\/\/link.segmentfault.com\/?enc=k9iBceXvP9NUyJaNW4%2BuqQ%3D%3D.2pQ5wAX%2B6AfVwjBOTYzTbkmvGi14emdmaCWVO4mlQwEfuVqOByciS7iiUzbyEIkWrHQiNtv5wBKNmyb%2F5OyIlzVuY2qXXoa%2FBePuXVBjpIQ%3D\" rel=\"nofollow\">\u52b2\u7206\uff01Java \u534f\u7a0b\u8981\u6765\u4e86\u3002\u3002\u3002<\/a><\/p>\n<p>3.<a href=\"https:\/\/link.segmentfault.com\/?enc=Q%2Bgxf0Y2Q7H5ZCAmXw60Cw%3D%3D.Rrpp81wh1uiLHgUVmNsbaPXLMlNxWOMLLz7EjeIDKcmDuPISWOfQ6ZAO3%2BAZJsYD\" rel=\"nofollow\">Spring Boot 2.x \u6559\u7a0b\uff0c\u592a\u5168\u4e86\uff01<\/a><\/p>\n<p>4.<a href=\"https:\/\/link.segmentfault.com\/?enc=dB5N%2FPBbBGXV16nH%2BBpjiQ%3D%3D.CqWcOcSXRs%2FWyapZF9C6Fq%2BVUaT2EciQZqnd%2FdWFYhvRud%2BoWICMCTBXkHymxrdU2NC8f97ELma%2BnUfB7SlYs%2BdB1IKofVX6n%2FQ00Yyp2zU%3D\" rel=\"nofollow\">\u522b\u518d\u5199\u6ee1\u5c4f\u7684\u7206\u7206\u7206\u70b8\u7c7b\u4e86\uff0c\u8bd5\u8bd5\u88c5\u9970\u5668\u6a21\u5f0f\uff0c\u8fd9\u624d\u662f\u4f18\u96c5\u7684\u65b9\u5f0f\uff01\uff01<\/a><\/p>\n<p>5.<a href=\"https:\/\/link.segmentfault.com\/?enc=0ZC8o6JTYD7zJnqRvVg1Pg%3D%3D.r8EZgWLYoTQLE0fRHr54%2FEyj%2B9p4KXE2vy1Xbuyte9SYo8Gz6%2F9Br0K43heX%2BXZrn%2B6xrJ4ZtMjnUpVA4f632%2FWd2xjqVKnpyy5gMtr%2BhTY8%2FLdfLDcAHYFFpQR5sHxW\" rel=\"nofollow\">\u300aJava\u5f00\u53d1\u624b\u518c\uff08\u5d69\u5c71\u7248\uff09\u300b\u6700\u65b0\u53d1\u5e03\uff0c\u901f\u901f\u4e0b\u8f7d\uff01<\/a><\/p>\n<p>\u89c9\u5f97\u4e0d\u9519\uff0c\u522b\u5fd8\u4e86\u968f\u624b\u70b9\u8d5e+\u8f6c\u53d1\u54e6\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042260052\">https:\/\/segmentfault.com\/a\/1190000042260052<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6765\u6e90: https:\/\/blog.csdn.net\/litianx&#8230; \u524d\u8a00 \u6700\u8fd1\u516c\u53f8\u7684\u5728\u505a\u670d\u52a1\u5316, [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006091","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006091","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006091"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006091\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}