{"id":31335,"date":"2024-01-18T16:47:07","date_gmt":"2023-08-01T22:12:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86\/"},"modified":"2025-08-12T23:30:22","modified_gmt":"2025-08-12T15:30:22","slug":"java%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86\/","title":{"rendered":"Java\u5f02\u5e38\u5904\u7406"},"content":{"rendered":"<p>\u6211\u5c06\u5bf9Java\u7684\u5f02\u5e38\u5904\u7406\u8fdb\u884c\u8f93\u51fa\uff01<\/p>\n<h2>\u4f8b\u5916\u662f\u6307\u4e0e\u4e00\u822c\u89c4\u5219\u6216\u60c5\u51b5\u4e0d\u540c\u7684\u7279\u6b8a\u60c5\u51b5\u6216\u4e2a\u4f53\u3002<\/h2>\n<p>\u5373\u4f7f\u7f16\u8bd1\u6210\u529f\uff0c\u6267\u884c\u65f6\u4ecd\u53ef\u80fd\u51fa\u73b0\u9519\u8bef\u3002\u5728\u6267\u884c\u65f6\u53d1\u751f\u7684\u9519\u8bef\u79f0\u4e3a\u5f02\u5e38\u3002\u5f53\u53d1\u751f\u5f02\u5e38\u65f6\uff0c\u88ab\u79f0\u4e3a\u201c\u629b\u51fa\u5f02\u5e38\u201d\u3002<\/p>\n<p>\u5f02\u5e38\u7c7b\u5206\u4e3a\u4e24\u79cd\u7c7b\u578b\uff1achecked\u5f02\u5e38\u548cunchecked\u5f02\u5e38\u3002<\/p>\n<p>checked\u5f02\u5e38\u662f\u7531\u4e8eJava\u6267\u884c\u73af\u5883\u4ee5\u5916\u7684\u56e0\u7d20\uff0c\u4f8b\u5982DB\u7b49\u539f\u56e0\u800c\u4ea7\u751f\u7684\uff1b\u800cunchecked\u5f02\u5e38\u662f\u7531\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\u672c\u8eab\u5bfc\u81f4\u7684\u3002\u5bf9\u4e8echecked\u5f02\u5e38\uff0c\u5f02\u5e38\u5904\u7406\u662f\u5fc5\u8981\u7684\u3002<\/p>\n<h2>\u5c1d\u8bd5-\u6355\u83b7-\u6700\u7ec8<\/h2>\n<p>\u5f02\u5e38\u5904\u7406\u7531try\u5757\u3001catch\u5757\u548cfinally\u5757\u7ec4\u6210\u3002<\/p>\n<div>\n<div class=\"post-table\">trycatch\u52173\u4f8b\u5916\u304c\u767a\u751f\u3057\u305d\u3046\u306a\u7b87\u6240\u3092try\u30d6\u30ed\u30c3\u30af\u3067\u56f2\u3080\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306e\u51e6\u7406\u3092\u8a18\u8ff0\u4f8b\u5916\u306e\u767a\u751f\u6709\u7121\u306b\u95a2\u4fc2\u306a\u304f\u5b9f\u884c\u3059\u308b\u51e6\u7406\u3092\u8a18\u8ff0<\/div>\n<\/div>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Main<\/span><span class=\"o\">{<\/span>\r\n    <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>\r\n        <span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">animal<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"s\">\"\u732b\"<\/span><span class=\"o\">,<\/span><span class=\"s\">\"\u72ac\"<\/span><span class=\"o\">,<\/span><span class=\"s\">\"\u514e\"<\/span><span class=\"o\">};<\/span>\r\n        <span class=\"k\">for<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"o\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">4<\/span><span class=\"o\">;<\/span> <span class=\"n\">i<\/span><span class=\"o\">++)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">try<\/span><span class=\"o\">{<\/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\">animal<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">]);<\/span>\r\n            <span class=\"o\">}<\/span><span class=\"k\">catch<\/span><span class=\"o\">(<\/span><span class=\"nc\">ArrayIndexOutOfBoundsException<\/span> <span class=\"n\">e<\/span><span class=\"o\">){<\/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=\"s\">\"\u4f8b\u5916\u767a\u751f\"<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"o\">}<\/span><span class=\"k\">finally<\/span><span class=\"o\">{<\/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=\"s\">\"\u5fc5\u305a\u5b9f\u884c\"<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"o\">}<\/span>\r\n        <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c (Sh\u00ed<\/p>\n<pre class=\"post-pre\"><code>\u732b\r\n\u5fc5\u305a\u5b9f\u884c\r\n\u72ac\r\n\u5fc5\u305a\u5b9f\u884c\r\n\u514e    \r\n\u5fc5\u305a\u5b9f\u884c\r\n\u4f8b\u5916\u767a\u751f\r\n\u5fc5\u305a\u5b9f\u884c\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7684\u4ee3\u78bc\u5305\u542b\u4e86\u4e00\u500b\u67093\u500b\u5143\u7d20\u7684\u9663\u5217\uff0c\u4f7f\u7528for\u5faa\u74b0\u6309\u9806\u5e8f\u8a2a\u554f\u9663\u5217\u7684\u5167\u5bb9\u3002<br \/>\n\u7136\u800c\uff0c\u7531\u65bc\u5be6\u884c\u4e864\u6b21\uff0c\u6240\u4ee5\u7b2c4\u6b21\u6703\u89f8\u767c\u300c\u4f7f\u7528\u7121\u6548\u7d22\u5f15\u8a2a\u554f\u9663\u5217\u300d\u7684\u7570\u5e38\u3002\u56e0\u6b64\uff0c\u5728catch\u584a\u7684\u53c3\u6578(ArrayIndexOutOfBoundsException)\u4e2d\u5beb\u5165\uff0c\u7576\u7b2c4\u6b21\u6642\u53ef\u4ee5\u5728catch\u584a\u4e2d\u6aa2\u6e2c\u5230\u4e26\u57f7\u884ccatch\u584a\u4e2d\u7684\u8655\u7406\u3002 finally \u584a\u5c07\u5728\u7121\u8ad6\u662f\u5426\u51fa\u73fe\u7570\u5e38\u90fd\u5c07\u88ab\u57f7\u884c\u3002<\/p>\n<h2>\u6254<\/h2>\n<p>\u9664\u4e86try-catch-finally\u5757\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7throws\u5173\u952e\u5b57\u8fdb\u884c\u5f02\u5e38\u5904\u7406\u3002\u5728\u5b9a\u4e49\u6709\u53ef\u80fd\u53d1\u751f\u5f02\u5e38\u7684\u65b9\u6cd5\u65f6\uff0c\u9700\u8981\u6307\u5b9a&#8221;throws \u5f02\u5e38\u7c7b\u540d&#8221;\u3002\u5f53\u5728\u8be5\u65b9\u6cd5\u5185\u90e8\u53d1\u751f\u6307\u5b9a\u7684\u5f02\u5e38\u65f6\uff0c\u5f02\u5e38\u5bf9\u8c61\u4f1a\u88ab\u4f20\u9012\u7ed9\u8be5\u65b9\u6cd5\u7684\u8c03\u7528\u8005\u3002<\/p>\n<h4>\u6295\u63b7\u7684\u597d\u5904<\/h4>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u4e0d\u4f7f\u7528throws\u7684\u5f02\u5e38\u5904\u7406\u60c5\u51b5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">Test<\/span><span class=\"o\">{<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"n\">live<\/span><span class=\"err\">\uff08<\/span><span class=\"o\">....){<\/span>\r\n        <span class=\"nc\">Animal<\/span> <span class=\"n\">animal<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Animal<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"n\">animal<\/span><span class=\"o\">.<\/span><span class=\"na\">eat<\/span><span class=\"o\">(...);<\/span>\r\n        <span class=\"n\">animal<\/span><span class=\"o\">.<\/span><span class=\"na\">sleep<\/span><span class=\"o\">(...);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">Animal<\/span><span class=\"o\">{<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">eat<\/span><span class=\"o\">(...){<\/span>\r\n        <span class=\"k\">try<\/span><span class=\"o\">{<\/span>\r\n            <span class=\"o\">...<\/span>\r\n        <span class=\"o\">}<\/span><span class=\"k\">catch<\/span><span class=\"o\">(<\/span><span class=\"nc\">ArrayIndexOutOfBoundsException<\/span> <span class=\"n\">e<\/span><span class=\"o\">){<\/span>\r\n            <span class=\"o\">...<\/span>\r\n        <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">sleep<\/span><span class=\"o\">(...){<\/span>\r\n        <span class=\"k\">try<\/span><span class=\"o\">{<\/span>\r\n            <span class=\"o\">...<\/span>\r\n        <span class=\"o\">}<\/span><span class=\"k\">catch<\/span><span class=\"o\">(<\/span><span class=\"nc\">ArrayIndexOutOfBoundsException<\/span> <span class=\"n\">e<\/span><span class=\"o\">){<\/span>\r\n            <span class=\"o\">...<\/span>\r\n        <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5373\u4f7f\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u4e5f\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u6bcf\u6b21\u5b9a\u4e49\u65b9\u6cd5\u65f6\u90fd\u9700\u8981\u7f16\u5199\u5f02\u5e38\u5904\u7406\u3002<br \/>\n\u5982\u679c\u51fa\u73b0\u76f8\u540c\u7684\u5f02\u5e38\u5904\u7406\uff0c\u4ee3\u7801\u5c06\u91cd\u590d\u3002\u5982\u679c\u4f7f\u7528throws\uff0c\u5219\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">Test<\/span><span class=\"o\">{<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"n\">live<\/span><span class=\"err\">\uff08<\/span><span class=\"o\">....){<\/span>\r\n        <span class=\"nc\">Animal<\/span> <span class=\"n\">animal<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Animal<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"k\">try<\/span><span class=\"o\">{<\/span>\r\n            <span class=\"n\">animal<\/span><span class=\"o\">.<\/span><span class=\"na\">eat<\/span><span class=\"o\">(...);<\/span> <span class=\"c1\">\/\/\u2460<\/span>\r\n            <span class=\"n\">animal<\/span><span class=\"o\">.<\/span><span class=\"na\">sleep<\/span><span class=\"o\">(...);<\/span><span class=\"c1\">\/\/\u2461<\/span>\r\n        <span class=\"o\">}<\/span><span class=\"k\">catch<\/span><span class=\"o\">(<\/span><span class=\"nc\">ArrayIndexOutOfBoundsException<\/span> <span class=\"n\">e<\/span><span class=\"o\">){<\/span>\r\n            <span class=\"c1\">\/\/\u4f8b\u5916\u767a\u751f\u6642\u306e\u51e6\u7406<\/span>\r\n        <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">Animal<\/span><span class=\"o\">{<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">eat<\/span><span class=\"o\">(...)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">ArrayIndexOutOfBoundsException<\/span><span class=\"o\">{<\/span>\r\n        <span class=\"c1\">\/\/\u4e0d\u6b63\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u914d\u5217\u304c\u30a2\u30af\u30bb\u30b9\u3055\u308c\u305f\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u2460(\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u5143)\u306b\u4f8b\u5916\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8ee2\u9001\u3059\u308b<\/span>\r\n    <span class=\"o\">}<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">sleep<\/span><span class=\"o\">(...)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">ArrayIndexOutOfBoundsException<\/span><span class=\"o\">{<\/span>\r\n        <span class=\"c1\">\/\/\u4e0d\u6b63\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u914d\u5217\u304c\u30a2\u30af\u30bb\u30b9\u3055\u308c\u305f\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u2461(\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u5143)\u306b\u4f8b\u5916\u3092\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u8ee2\u9001\u3059\u308b<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u65b9\u6cd5\u540d\u4e4b\u540e\u52a0\u4e0a&#8221;throws ArrayIndexOutOfBoundsException&#8221;\uff0c\u8fd9\u6837\u5982\u679c\u65b9\u6cd5\u5185\u53d1\u751f\u4e86ArrayIndexOutOfBoundsException\u7684\u5f02\u5e38\uff0c\u5c31\u4f1a\u5c06\u5f02\u5e38\u4f20\u9012\u7ed9\u65b9\u6cd5\u7684\u8c03\u7528\u8005\u3002\u800c\u4e14\u7531\u4e8e\u65b9\u6cd5\u7684\u8c03\u7528\u8005\u88ab\u5305\u56f4\u5728try\u5757\u4e2d\uff0c\u6240\u4ee5\u4e0b\u65b9\u7684catch\u5757\u53ef\u4ee5\u6355\u83b7\u5230ArrayIndexOutOfBoundsException\u5f02\u5e38\u5bf9\u8c61\uff0c\u5e76\u6267\u884c\u5f02\u5e38\u53d1\u751f\u65f6\u7684\u5904\u7406\u3002<\/p>\n<p>\u8bf7\u5728\u4ee5\u4e0a\u4e2d\uff0c\u5982\u679c\u6709\u9519\u8bef\u7684\u5730\u65b9\u6216\u66f4\u65b9\u4fbf\u7684\u5199\u6cd5\uff0c\u8bf7\u6559\u6559\u6211\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u5c06\u5bf9Java\u7684\u5f02\u5e38\u5904\u7406\u8fdb\u884c\u8f93\u51fa\uff01 \u4f8b\u5916\u662f\u6307\u4e0e\u4e00\u822c\u89c4\u5219\u6216\u60c5\u51b5\u4e0d\u540c\u7684\u7279\u6b8a\u60c5\u51b5\u6216\u4e2a\u4f53\u3002 \u5373\u4f7f\u7f16\u8bd1\u6210\u529f\uff0c\u6267\u884c\u65f6\u4ecd\u53ef\u80fd [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31335","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>Java\u5f02\u5e38\u5904\u7406 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8eJava\u5f02\u5e38\u5904\u7406\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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