{"id":693,"date":"2021-02-09T15:59:21","date_gmt":"2021-02-09T07:59:21","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=693"},"modified":"2021-02-09T20:37:08","modified_gmt":"2021-02-09T12:37:08","slug":"throws-%e5%a3%b0%e6%98%8e%e6%8a%9b%e5%87%ba","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-693.html","title":{"rendered":"throws &#8212; \u58f0\u660e\u629b\u51fa"},"content":{"rendered":"\n<p>\u629b\u51fa\u5f02\u5e38\u7ed9\u522b\u4eba\u5904\u7406\uff0c\u662f\u5f02\u5e38\u5904\u7406\u7684\u7b2c\u4e00\u79cd\u65b9\u5f0f<\/p>\n\n\n\n<p>throws \u662f\u58f0\u660e\u629b\u51fa\u7684\u5173\u952e\u5b57<\/p>\n\n\n\n<h5>1.throws \u8bed\u6cd5<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4fee\u9970\u7b26 \u8fd4\u56de\u503c\u7c7b\u578b \u65b9\u6cd5\u540d(\u53c2\u6570\u5217\u8868) throws AAAException,BBBException...{\n    throw new  AAAException(\"\u629b\u51fa\u539f\u56e0\");\n    method(); \/\/ \u629b\u51faBBBException\n    ...\n}<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f\u4e8b\u9879<\/p>\n\n\n\n<ul><li>throws \u5fc5\u987b\u5199\u5728\u65b9\u6cd5\u58f0\u660e\u5904<\/li><li>throws \u629b\u51fa\u7684\u5fc5\u987b\u662f Exception \u6216\u5176\u5b50\u7c7b<\/li><li>\u5982\u679c\u58f0\u660e\u629b\u51fa\u7684\u591a\u4e2a Exception \u6709\u7236\u5b50\u5173\u7cfb\uff0c\u53ea\u9700\u8981\u58f0\u660e\u7236Exception<\/li><li>\u5b50\u7c7b\u65b9\u6cd5\u8986\u76d6\u65e0\u6cd5\u58f0\u660e\u629b\u51fa\u7236\u7c7b\u65b9\u6cd5\u4e0d\u5b58\u5728\u7684\u5f02\u5e38<\/li><li>throws \u58f0\u660e\u629b\u51fa\u7684\u5f02\u5e38\uff0c\u90fd\u662f\u7f16\u8bd1\u671f\u5f02\u5e38\uff0c\u65b9\u6cd5\u4e2d\u7684\u5f02\u5e38\u6709 2 \u4e2d\u6765\u6e90<ol><li>\u4e00\u79cd\u662f throw \u629b\u51fa\u7684\u7f16\u8bd1\u671f\u5f02\u5e38<\/li><li>\u53e6\u4e00\u79cd\u662f\u5904\u7406\u662f\u8c03\u7528\u5176\u4ed6\u65b9\u6cd5\u629b\u51fa\u7684\u7f16\u8bd1\u671f\u5f02\u5e38\uff0c\u7ee7\u7eed\u629b\u51fa<\/li><\/ol><\/li><\/ul>\n\n\n\n<h5>2.\u4f8b\u5b50<\/h5>\n\n\n\n<p>check \u65b9\u6cd5\u629b\u51fa\u4e86 FileNotFoundException  \u548c IOException\uff0c\u53ea\u9700\u8981\u58f0\u660e\u540e\u8005<\/p>\n\n\n\n<p>main \u65b9\u6cd5\u8c03\u7528\u4e86 check\uff0c\u9700\u8981\u5904\u7406 check \u65b9\u6cd5\u629b\u51fa\u7684\u5f02\u5e38\uff0c\u9009\u62e9\u7ee7\u7eed\u629b\u51fa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public static void main(String&#91;] args) throws IOException {\n    check(\"c:\\\\a.txt\");\n}\npublic static void check(String fileName) throws IOException {\n\tif(fileName.equals(\"d:\\\\a.txt\")) {\n\t\tthrow new FileNotFoundException();\n\t}\n\tFile f = new File(fileName);\n\tf.createNewFile();  \/\/throw IOException\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u629b\u51fa\u5f02\u5e38\u7ed9\u522b\u4eba\u5904\u7406\uff0c\u662f\u5f02\u5e38\u5904\u7406\u7684\u7b2c\u4e00\u79cd\u65b9\u5f0f throws \u662f\u58f0\u660e\u629b\u51fa\u7684\u5173\u952e\u5b57 1.throws \u8bed\u6cd5 \u6ce8\u610f\u4e8b\u9879&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-693.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">throws &#8212; \u58f0\u660e\u629b\u51fa<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[24],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/693"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=693"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/693\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}