{"id":31216,"date":"2023-01-14T02:17:10","date_gmt":"2023-11-03T09:27:16","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%bajava%e5%af%b9%e8%b1%a1\/"},"modified":"2025-08-12T22:53:15","modified_gmt":"2025-08-12T14:53:15","slug":"%e5%88%9b%e5%bb%bajava%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%bajava%e5%af%b9%e8%b1%a1\/","title":{"rendered":"\u521b\u5efaJava\u5bf9\u8c61"},"content":{"rendered":"<h1>\u9996\u5148\u6211\u7b2c\u4e00\u6b21\u5728Java\u4e2d\u521b\u5efa\u5bf9\u8c61\uff0c\u6240\u4ee5\u4e3a\u4e86\u5907\u5fd8\u5f55\u7684\u76ee\u7684\u8bb0\u5f55\u4e0b\u6765\u3002<\/p>\n<h1>\u521b\u5efa\u5546\u54c1\u5bf9\u8c61<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ItemBean<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">Serializable<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"c1\">\/\/\u5c5e\u6027\u306e\u4f5c\u6210<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">itemID<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5546\u54c1ID<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">itemName<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5546\u54c1\u540d<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">itemPrice<\/span> <span class=\"c1\">\/\/\u5546\u54c1\u4fa1\u683c<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">itemStock<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5546\u54c1\u5728\u5eab<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u79c1\u6709\u4fee\u9970\u7b26 \u7c7b\u578b \u53d8\u91cf;<\/p>\n<p>\u8fd9\u4e9b\u5c5e\u6027\u88ab\u58f0\u660e\u4e3a\u53ea\u80fd\u5728\u7c7b\u5185\u90e8\u8bbf\u95ee\u7684\u79c1\u6709\u5b57\u6bb5\u3002<\/p>\n<p>\u901a\u8fc7\u5c06\u8bbf\u95ee\u63a7\u5236\u8bbe\u7f6e\u4e3a\u79c1\u6709\uff0c\u9650\u5236\u4e86\u76f4\u63a5\u6765\u81ea\u5916\u90e8\u7684\u8bbf\u95ee\uff0c\u5e76\u9075\u5faa\u5c01\u88c5\u7684\u539f\u5219\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u4ec5\u5728ItemBean\u7c7b\u5185\u53ef\u4f7f\u7528\u3002<\/p>\n<h1>\u521b\u5efagetter\u548csetter\u65b9\u6cd5<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ItemBean<\/span> <span class=\"kd\">implements<\/span> <span class=\"nc\">Serializable<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"c1\">\/\/\u5c5e\u6027\u306e\u4f5c\u6210<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">itemID<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5546\u54c1ID<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">itemName<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5546\u54c1\u540d<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">itemPrice<\/span> <span class=\"c1\">\/\/\u5546\u54c1\u4fa1\u683c<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">itemStock<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5546\u54c1\u5728\u5eab<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">getItemID<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">itemID<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setItemID<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">itemID<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">itemID<\/span> <span class=\"o\">=<\/span> <span class=\"n\">itemID<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">getItemName<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">itemName<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setItemName<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">itemName<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">itemName<\/span> <span class=\"o\">=<\/span> <span class=\"n\">itemName<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"nf\">getItemPrice<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">itemPrice<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setItemPrice<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">itemPrice<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">itemPrice<\/span> <span class=\"o\">=<\/span> <span class=\"n\">itemPrice<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"nf\">getItemStock<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"n\">itemStock<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setItemStock<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">itemStock<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">itemStock<\/span> <span class=\"o\">=<\/span> <span class=\"n\">itemStock<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u9488\u5bf9\u4f7f\u7528private\u4fee\u9970\u7b26\u521b\u5efa\u7684\u6240\u6709\u5c5e\u6027\u7684\u65b9\u6cd5\u3002\uff08\u53ef\u4ee5\u901a\u8fc7Eclipse\u7684\u529f\u80fd\u8f7b\u677e\u521b\u5efa\u3002\uff09<\/p>\n<p>\u5982\u524d\u6240\u8ff0\uff0cprivate\u4fee\u9970\u7b26\u4e0d\u80fd\u76f4\u63a5\u4ece\u5916\u90e8\u8c03\u7528\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u53ef\u4ee5\u4ece\u5916\u90e8\u8bbf\u95ee\u7684\u65b9\u6cd5\u3002<br \/>\nset\u7528\u4e8e\u8bbe\u7f6e\u5c5e\u6027\u503c\uff0cget\u7528\u4e8e\u8c03\u7528\u88ab\u8bbe\u7f6e\u7684\u503c\u3002<\/p>\n<h1>\u521b\u5efa\u4e00\u4e2a\u8c03\u7528\u5546\u54c1\u5bf9\u8c61\u7684\u7c7b<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Item<\/span> <span class=\"o\">{<\/span>\r\n\r\n\t<span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\r\n    \t<span class=\"c1\">\/\/\u5546\u54c1\u306e\u4f5c\u6210<\/span>\r\n    \t<span class=\"c1\">\/\/ItemBean:\u30af\u30e9\u30b9\u540d, itemBean:\u5909\u6570\u540d new ItemBean\u304c\u5f15\u6570\u306a\u3057\u3067\u4f5c\u3063\u305f\u30e1\u30bd\u30c3\u30c9<\/span>\r\n    \t<span class=\"nc\">ItemBean<\/span> <span class=\"n\">itemBean<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ItemBean<\/span><span class=\"o\">();<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemID<\/span><span class=\"o\">(<\/span><span class=\"s\">\"001\"<\/span><span class=\"o\">);<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u5546\u54c1\uff11\"<\/span><span class=\"o\">);<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemPrice<\/span><span class=\"o\">(<\/span><span class=\"mi\">1000<\/span><span class=\"o\">);<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemStock<\/span><span class=\"o\">(<\/span><span class=\"mi\">10<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u7528\u65b0\u7684\u7c7bItemBean\u5b9e\u4f8b\u5316\u4e00\u4e2a\u7c7b\u578b\u4e3aItemBean\u7684\u53d8\u91cfitemBean\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u8bbf\u95eeItemBean\u7c7b\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u503c\u3002\u4f7f\u7528new ItemBean()\u53ef\u4ee5\u521b\u5efaItemBean\u7c7b\u7684\u5b9e\u4f8b\u3002<\/p>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0citemBean.setItemID(&#8220;001&#8221;)\u662f\u8c03\u7528\u4e86itemBean\u6240\u5f15\u7528\u7684ItemBean\u5b9e\u4f8b\u7684setItemID\u65b9\u6cd5\uff0c\u5e76\u5c06&#8221;001&#8243;\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002<\/p>\n<p>\u540c\u6837\u5730\uff0c\u53ef\u4ee5\u901a\u8fc7itemBean\u6765\u83b7\u53d6\u548c\u8bbe\u7f6eItemBean\u7c7b\u7684\u5c5e\u6027\u503c\uff0c\u4ee5\u53ca\u8c03\u7528\u65b9\u6cd5\uff0c\u6bd4\u5982itemBean.getItemName()\u548citemBean.setItemStock(10)\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u901a\u8fc7\u4f7f\u7528ItemBean itemBean = new ItemBean()\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efaItemBean\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5e76\u5c06\u8be5\u5b9e\u4f8b\u5206\u914d\u7ed9itemBean\u53d8\u91cf\uff0c\u4ece\u800c\u53ef\u4ee5\u901a\u8fc7itemBean\u6765\u4f7f\u7528ItemBean\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<h1>\u4ece\u5546\u54c1\u5bf9\u8c61\u5c55\u793a\u5546\u54c1\u4fe1\u606f\u7684\u65b9\u6cd5<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Item<\/span> <span class=\"o\">{<\/span>\r\n\r\n\t<span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\r\n    \t<span class=\"c1\">\/\/\u5546\u54c1\u306e\u4f5c\u6210<\/span>\r\n    \t<span class=\"nc\">ItemBean<\/span> <span class=\"n\">itemBean<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ItemBean<\/span><span class=\"o\">();<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemID<\/span><span class=\"o\">(<\/span><span class=\"s\">\"001\"<\/span><span class=\"o\">);<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u5546\u54c1\uff11\"<\/span><span class=\"o\">);<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemPrice<\/span><span class=\"o\">(<\/span><span class=\"mi\">1000<\/span><span class=\"o\">);<\/span>\r\n    \t<span class=\"n\">itemBean<\/span><span class=\"o\">.<\/span><span class=\"na\">setItemStock<\/span><span class=\"o\">(<\/span><span class=\"mi\">10<\/span><span class=\"o\">);<\/span>\r\n\r\n        <span class=\"c1\">\/\/\u5546\u54c1\u60c5\u5831\u3092\u8868\u793a<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">print<\/span><span class=\"o\">(<\/span><span class=\"n\">itemBean1<\/span><span class=\"o\">.<\/span><span class=\"na\">getItemID<\/span><span class=\"o\">());<\/span> <span class=\"c1\">\/\/001<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">print<\/span><span class=\"o\">(<\/span><span class=\"n\">itemBean1<\/span><span class=\"o\">.<\/span><span class=\"na\">getItemName<\/span><span class=\"o\">());<\/span> <span class=\"c1\">\/\/\u5546\u54c11<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">print<\/span><span class=\"o\">(<\/span><span class=\"n\">itemBean1<\/span><span class=\"o\">.<\/span><span class=\"na\">getItemPrice<\/span><span class=\"o\">());<\/span><span class=\"err\">\u3000<\/span><span class=\"c1\">\/\/1000<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">itemBean1<\/span><span class=\"o\">.<\/span><span class=\"na\">getItemStock<\/span><span class=\"o\">());<\/span> <span class=\"c1\">\/\/10<\/span>\r\n\r\n    <span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u6267\u884cItemBean\u7c7b\u4e2d\u5b58\u5728\u7684get\uff0a\uff0a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u663e\u793a\u5546\u54c1\u5bf9\u8c61\u3002<\/p>\n<h1>\u603b\u7ed3\u8fd9\u6b21\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u57fa\u672c\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u8003\u8651\u5230\u51cf\u5c11\u4ee3\u7801\u884c\u6570\uff0c\u6211\u8ba4\u4e3a\u901a\u8fc7\u5728ItemBean.java\u4e2d\u8bbe\u7f6e\u6784\u9020\u51fd\u6570\uff0c\u53ef\u4ee5\u4e00\u884c\u4ee3\u7801\u521b\u5efa\u5b9e\u4f8b\u548c\u5546\u54c1\u5bf9\u8c61\u3002<\/p>\n<p>\u6211\u5728\u8003\u8651\u4e0b\u4e00\u7bc7\u6587\u7ae0\u662f\u5426\u5e94\u8be5\u5199\u5173\u4e8e\u8fd9\u4e2a\u5730\u65b9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u6211\u7b2c\u4e00\u6b21\u5728Java\u4e2d\u521b\u5efa\u5bf9\u8c61\uff0c\u6240\u4ee5\u4e3a\u4e86\u5907\u5fd8\u5f55\u7684\u76ee\u7684\u8bb0\u5f55\u4e0b\u6765\u3002 \u521b\u5efa\u5546\u54c1\u5bf9\u8c61 public class It [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31216","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u521b\u5efaJava\u5bf9\u8c61 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u521b\u5efaJava\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u521b\u5efajava\u5bf9\u8c61\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" 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