{"id":67740,"date":"2023-12-31T14:27:08","date_gmt":"2023-12-31T06:27:08","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=67740"},"modified":"2023-12-31T14:27:10","modified_gmt":"2023-12-31T06:27:10","slug":"throw%e5%92%8cthrows%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/67740.html","title":{"rendered":"throw\u548cthrows\u7684\u533a\u522b"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote\">\n<p>\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u4e86Java\u7f16\u7a0b\u8bed\u8a00\u4e2d\u4e24\u4e2a\u5173\u952e\u5b57\uff1athrow\u548cthrows\u7684\u533a\u522b\u3002\u867d\u7136\u8fd9\u4e24\u4e2a\u672f\u8bed\u5728\u5904\u7406\u5f02\u5e38\u65f6\u7ecf\u5e38\u88ab\u63d0\u53ca\uff0c\u4f46\u5b83\u4eec\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u5e94\u7528\u573a\u666f\u4e0a\u6709\u663e\u8457\u7684\u4e0d\u540c\u3002\u6587\u7ae0\u5185\u5bb9\u5305\u62ec\uff1a1.\u5b9a\u4e49\u548c\u57fa\u672c\u6982\u5ff5\uff1b2.\u4f7f\u7528\u8bed\u6cd5\u548c\u4e0a\u4e0b\u6587\uff1b3.\u5f02\u5e38\u5904\u7406\u6d41\u7a0b\u4e2d\u7684\u89d2\u8272\uff1b4.\u4e0etry-catch\u5757\u7684\u5173\u7cfb\uff1b5.\u5728\u4e0d\u540c\u5f02\u5e38\u7c7b\u578b\u4e2d\u7684\u5e94\u7528\uff1b6.\u6700\u4f73\u5b9e\u8df5\u548c\u5e38\u89c1\u9519\u8bef\u3002\u901a\u8fc7\u8fd9\u4e9b\u6bd4\u8f83\uff0c\u672c\u6587\u65e8\u5728\u4e3aJava\u5f00\u53d1\u8005\u63d0\u4f9b\u660e\u786e\u7684\u6307\u5bfc\uff0c\u5e2e\u52a9\u4ed6\u4eec\u5728\u7f16\u7a0b\u4e2d\u66f4\u6709\u6548\u5730\u4f7f\u7528\u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">1.\u5b9a\u4e49\u548c\u57fa\u672c\u6982\u5ff5<\/h2>\n\n\n\n<p>throw\u5173\u952e\u5b57\uff1a\u7528\u4e8e\u5728\u65b9\u6cd5\u4f53\u5185\u90e8\u4e3b\u52a8\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\u5bf9\u8c61\u3002\u5b83\u521b\u5efa\u5e76\u629b\u51fa\u4e86\u4e00\u4e2a\u7279\u5b9a\u7684\u5f02\u5e38\u5b9e\u4f8b\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u5728\u65b9\u6cd5\u6267\u884c\u8fc7\u7a0b\u4e2d\u53d1\u751f\u4e86\u67d0\u79cd\u5f02\u5e38\u6761\u4ef6\u3002<\/p>\n\n\n\n<p>throws\u5173\u952e\u5b57\uff1a\u7528\u4e8e\u5728\u65b9\u6cd5\u58f0\u660e\u4e2d\u6307\u5b9a\u4e00\u4e2a\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\u3002\u5b83\u662f\u65b9\u6cd5\u7b7e\u540d\u7684\u4e00\u90e8\u5206\uff0c\u7528\u4e8e\u901a\u77e5\u65b9\u6cd5\u8c03\u7528\u8005\u8be5\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2.\u4f7f\u7528\u8bed\u6cd5\u548c\u4e0a\u4e0b\u6587<\/h2>\n\n\n\n<p>throw\u8bed\u6cd5\u793a\u4f8b\uff1a<\/p>\n\n\n\n<p>public void exampleMethod() {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; if (someCondition) {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; throw new SpecificException(&#8220;Error message&#8221;);<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; }<\/p>\n\n\n\n<p>}<\/p>\n\n\n\n<p>throws\u8bed\u6cd5\u793a\u4f8b\uff1a<\/p>\n\n\n\n<p>public void exampleMethod() throws SpecificException {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; \/\/ Method implementation<\/p>\n\n\n\n<p>}<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.\u5f02\u5e38\u5904\u7406\u6d41\u7a0b\u4e2d\u7684\u89d2\u8272<\/h2>\n\n\n\n<p>throw\uff1a\u76f4\u63a5\u63a7\u5236\u5f02\u5e38\u7684\u629b\u51fa\u3002\u5b83\u5728\u53d1\u73b0\u5f02\u5e38\u6761\u4ef6\u65f6\u7acb\u5373\u751f\u6210\u5e76\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>throws\uff1a\u58f0\u660e\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\uff0c\u4f46\u4e0d\u5904\u7406\u8fd9\u4e9b\u5f02\u5e38\u3002\u5b9e\u9645\u7684\u5f02\u5e38\u5904\u7406\u8d23\u4efb\u8f6c\u79fb\u7ed9\u65b9\u6cd5\u7684\u8c03\u7528\u8005\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4.\u4e0etry-catch\u5757\u7684\u5173\u7cfb<\/h2>\n\n\n\n<p>\u4f7f\u7528throw\u65f6\uff0c\u5e38\u4e0etry-catch\u5757\u7ed3\u5408\uff0c\u4ee5\u5904\u7406\u65b9\u6cd5\u5185\u90e8\u53ef\u80fd\u53d1\u751f\u7684\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528throws\u65f6\uff0c\u65b9\u6cd5\u7684\u8c03\u7528\u8005\u9700\u8981\u4f7f\u7528try-catch\u5757\u6765\u5904\u7406\u6216\u8fdb\u4e00\u6b65\u4f20\u64ad\u8fd9\u4e9b\u5f02\u5e38\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5.\u5728\u4e0d\u540c\u5f02\u5e38\u7c7b\u578b\u4e2d\u7684\u5e94\u7528<\/h2>\n\n\n\n<p>throw\uff1a\u53ef\u7528\u4e8e\u629b\u51fa\u4efb\u4f55\u7c7b\u578b\u7684\u5f02\u5e38\uff0c\u5305\u62ec\u81ea\u5b9a\u4e49\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>throws\uff1a\u5e38\u7528\u4e8e\u58f0\u660e\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u68c0\u67e5\u578b\u5f02\u5e38\uff0c\u4ee5\u53ca\u975e\u68c0\u67e5\u578b\u5f02\u5e38\u7684\u4f20\u64ad\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6.\u6700\u4f73\u5b9e\u8df5\u548c\u5e38\u89c1\u9519\u8bef<\/h2>\n\n\n\n<p>throw\uff1a\u5728\u629b\u51fa\u5f02\u5e38\u65f6\u63d0\u4f9b\u8be6\u7ec6\u7684\u9519\u8bef\u4fe1\u606f\uff0c\u4e0d\u8981\u6ee5\u7528\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>throws\uff1a\u907f\u514d\u5728\u65b9\u6cd5\u7b7e\u540d\u4e2d\u58f0\u660e\u8fc7\u591a\u7684\u5f02\u5e38\uff0c\u5c3d\u91cf\u7cbe\u786e\u5730\u58f0\u660e\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\u3002<\/p>\n\n\n\n<p><img fetchpriority=\"high\" decoding=\"async\" width=\"484\" height=\"300\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/12\/930998-throw\u548cthrows\u7684\u533a\u522b.png?x-oss-process=image\/auto-orient,1\/format,webp\" class=\"aligncenter\" alt=\"throw\u548cthrows\u7684\u533a\u522b\" \/><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" \/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u5e38\u89c1\u95ee\u7b54<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-1 wp-block-group-is-layout-flex\">\n<ul>\n<li><strong>\u95ee\uff1athrow\u548cthrows\u5173\u952e\u5b57\u5728Java\u4e2d\u6709\u4ec0\u4e48\u4e0d\u540c\uff1f<\/strong><\/li>\n\n\n\n<li><strong>\u7b54\uff1a<\/strong>throw\u5173\u952e\u5b57\u5728Java\u4e2d\u7528\u4e8e\u660e\u786e\u5730\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\uff0c\u5b83\u662f\u5728\u65b9\u6cd5\u5185\u90e8\u4f7f\u7528\u7684\u3002\u800cthrows\u5173\u952e\u5b57\u7528\u4e8e\u58f0\u660e\u4e00\u4e2a\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\uff0c\u5b83\u662f\u5728\u65b9\u6cd5\u58f0\u660e\u65f6\u4f7f\u7528\u7684\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-2 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