{"id":31148,"date":"2024-02-10T00:56:38","date_gmt":"2022-12-16T08:44:10","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java-%e5%bc%82%e5%b8%b8%e7%9a%84%e7%a4%ba%e4%be%8b\/"},"modified":"2025-08-12T22:34:08","modified_gmt":"2025-08-12T14:34:08","slug":"java-%e5%bc%82%e5%b8%b8%e7%9a%84%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-%e5%bc%82%e5%b8%b8%e7%9a%84%e7%a4%ba%e4%be%8b\/","title":{"rendered":"Java \u5f02\u5e38\u7684\u793a\u4f8b"},"content":{"rendered":"

\u6574\u7406Java\u5f02\u5e38\u7684\u4fe1\u606f\u3002<\/p>\n

\u79cd\u7c7b\u4e2d\u7684\u4f8b\u5916\uff08\u7ee7\u627f\u5173\u7cfb\uff09<\/p>\n
\n \"image.png\"<\/p>\n
\n
\n\n\n\u30af\u30e9\u30b9<\/th>\n\u6982\u8981<\/th>\n\u4f8b<\/th>\n<\/tr>\n<\/thead>\n\n\nThrowable<\/td>\n\u4f8b\u5916\u306e\u57fa\u5e95\u30af\u30e9\u30b9throws\/try-cathc\u5fc5\u8981<\/td>\n–<\/td>\n<\/tr>\n\nError<\/td>\n\u81f4\u547d\u7684\u30a8\u30e9\u30fcthrows\/try-cathc\u4e0d\u8981<\/td>\nStackOverflowErrorOutOfMemoryError<\/td>\n<\/tr>\n\nException<\/strong><\/td>\n\u691c\u67fb\u4f8b\u5916throws\/try-cathc\u5fc5\u8981\uff08\u306a\u3044\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff09<\/td>\nIOExceptionSQLException<\/td>\n<\/tr>\n\nRuntimeException<\/strong><\/td>\n\u975e\u691c\u67fb\u4f8b\u5916throws\/try-cathc\u4e0d\u8981\u691c\u67fb\u4f8b\u5916\u3092\u30e9\u30c3\u30d7\u3057\u305fException\u3092\u4f5c\u308b\u3053\u3068\u304c\u3042\u308b<\/td>\nNullPointerExceptionNumberFormatException<\/td>\n<\/tr>\n<\/tbody>\n

\u5f02\u5e38\u68c0\u67e5\u4f8b\u5916<\/p>\n

\u5fc5\u987b\u5f3a\u5236\u8c03\u7528\u65b9\u8fdb\u884c\u67d0\u79cd\u5f02\u5e38\u5904\u7406\u7684\u5f02\u5e38\u3002
\n\u5982\u679c\u4e0d\u4f7f\u7528throws\u6216try-catch\u5c06\u5bfc\u81f4\u7f16\u8bd1\u9519\u8bef\u3002
\n\u4e3a\u4e86\u4e0d\u4e27\u5931\u5f02\u5e38\u4fe1\u606f\u800c\u4e0d\u5904\u7406\u5f02\u5e38\uff0c\u53ef\u4ee5\u901a\u8fc7throws\u5c06\u5f02\u5e38\u629b\u7ed9\u8c03\u7528\u65b9\u3002<\/p>\n

    \n\u30e1\u30bd\u30c3\u30c9\u5ba3\u8a00 throws \u3067\u547c\u3073\u51fa\u3057\u5143\u306b\u4f8b\u5916\u3092\u6295\u3052\u308b\n<\/ul>\n
    public<\/span> void<\/span> method<\/span>()<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
      \n\u51e6\u7406\u5185\u3067 try-catch \u3057\u3066\u4f8b\u5916\u51e6\u7406\n<\/ul>\n
      try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n    \/\/ \u4f8b\u5916\u51e6\u7406<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
      RuntimeException\u662f\u4e00\u4e2a\u975e\u53d7\u68c0\u5f02\u5e38\u3002<\/p>\n
      \u4e0d\u9700\u8981\u5f37\u5236\u547c\u53eb\u65b9\u8655\u7406\u4f8b\u5916\u7684\u4f8b\u5916
      \n\u5373\u4f7f\u4e0d\u9032\u884c\u4f8b\u5916\u8655\u7406\uff0c\u4e5f\u4e0d\u6703\u767c\u751f\u7de8\u8b6f\u932f\u8aa4\uff08\u800c\u6703\u7522\u751f\u57f7\u884c\u6642\u932f\u8aa4\uff09
      \n\u6709\u6642\u6703\u5c07\u6aa2\u67e5\u4f8b\u5916\u5305\u88dd\u6210\u975e\u6aa2\u67e5\u4f8b\u5916
      \n\u9019\u6a23\u5c31\u53ef\u4ee5\u5728\u4e0d\u6539\u8b8a\u547c\u53eb\u65b9\u65b9\u6cd5\u5b9a\u7fa9\u7684\u60c5\u6cc1\u4e0b\u8655\u7406\uff0c\u800c\u4e0d\u6703\u7522\u751f\u7de8\u8b6f\u932f\u8aa4<\/p>\n
        \n\u691c\u67fb\u4f8b\u5916\u3092\u975e\u691c\u67fb\u4f8b\u5916\u3067\u30e9\u30c3\u30d7\n<\/ul>\n
        try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span> \r\n    throw<\/span> new<\/span> RuntimeException<\/span>(<\/span>e<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
        \u5f02\u5e38\u5904\u7406\u7684\u8bed\u6cd5<\/p>\n
        \u6574\u7406Java\u7684\u5f02\u5e38\u5904\u7406\u8bed\u6cd5\u3002
        \n\u6709\u4e24\u79cd\u8bed\u6cd5\uff1a\u65b9\u6cd5\u58f0\u660ethrows\u548ctry-catch\u5757\u5904\u7406\u3002
        \n\u5982\u679c\u53d1\u751fException\u68c0\u67e5\u5f02\u5e38\uff0c\u5982\u679c\u6ca1\u6709\u58f0\u660e\u7f16\u8bd1\u9519\u8bef\u3002
        \n\u5bf9\u4e8eRuntimeException\u975e\u68c0\u67e5\u5f02\u5e38\uff0c\u4e0d\u9700\u8981\u58f0\u660e\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u5728JavaDoc\u4e2d\u6dfb\u52a0\u6ce8\u91ca\u6765\u5411\u5176\u4ed6\u5f00\u53d1\u8005\u8bf4\u660e\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n
        \u65b9\u6cd5\u58f0\u660e\u629b\u51fa\u5f02\u5e38<\/p>\n
        \u5f53\u5728\u8c03\u7528\u5143\u7684\u7c7b\u4e2d\u6267\u884c\u5f02\u5e38\u5904\u7406\u65f6\uff0c\u9700\u8981\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u63cf\u8ff0\uff1a
        \n\u9488\u5bf9\u53d1\u751f\u7684\u5f02\u5e38\u8fdb\u884cthrows\u7684\u8bb0\u5f55\u3002<\/p>\n
        public<\/span> void<\/span> method<\/span>()<\/span> throws<\/span> IOException<\/span>,<\/span> ParseException<\/span> {<\/span> \/\/ \u300c,\u300d\u533a\u5207\u308a\u3067\u8907\u6570\u8a18\u8f09OK <\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    Object<\/span> text<\/span> =<\/span> new<\/span> DateFormatter<\/span>().<\/span>stringToValue<\/span>(<\/span>\"test\"<\/span>);<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
        \u5728\u4ee3\u7801\u4e2d\u4f7f\u7528try-catch-finally\u6765\u5904\u7406\u5f02\u5e38\u3002<\/p>\n
        \u5728\u5904\u7406\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u5f02\u5e38\u5904\u7406\u7684\u8bf4\u660e\u65b9\u6cd5
        \n\u5bf9\u4e8e\u53d1\u751f\u7684\u5f02\u5e38\u9010\u4e2a\u5728catch\u4e2d\u8fdb\u884c\u8bf4\u660e
        \n\u5728catch\u540e\u9762\u7684\u5f02\u5e38\u5904\u7406\u4e2d\u4e5f\u53ef\u4ee5\u8fdb\u884cthrow\u64cd\u4f5c
        \n\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8981\u4e0e\u65b9\u6cd5\u58f0\u660e\u7684throws\u4e00\u8d77\u8fdb\u884c\u8bf4\u660e
        \n\u5982\u679c\u6709\u5fc5\u8981\u5728\u5f02\u5e38\u53d1\u751f\u4e4b\u540e\u59cb\u7ec8\u6267\u884c\u5904\u7406\uff0c\u53ef\u4ee5\u5728finally\u4e2d\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n
        try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    Object<\/span> text<\/span> =<\/span> new<\/span> DateFormatter<\/span>().<\/span>stringToValue<\/span>(<\/span>\"test\"<\/span>);<\/span>\r\n    Thread<\/span>.<\/span>sleep<\/span>(<\/span>1<\/span>);<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> |<\/span> ParseException<\/span> e<\/span>)<\/span> {<\/span> \/\/ \u300c|\u300d\u3067\u8907\u6570\u8a18\u8f09OK<\/span>\r\n    \/\/ \u4f8b\u5916\u51e6\u7406<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span> \/\/ \u300ccatch\u300d\u306f\u8907\u6570\u8a18\u8f09OK<\/span>\r\n    \/\/ \u4f8b\u5916\u51e6\u7406<\/span>\r\n    ...<\/span>\r\n    \/\/ throw \u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\uff08\u305d\u306e\u5834\u5408\u3001\u30e1\u30bd\u30c3\u30c9\u5ba3\u8a00 throws \u3082\u5fc5\u8981\uff09<\/span>\r\n    throw<\/span> e<\/span>;<\/span>\r\n}<\/span> finally<\/span> {<\/span>\r\n    \/\/ \u4f8b\u5916\u767a\u751f\u306b\u95a2\u4fc2\u306a\u304f\u5fc5\u305a\u5b9f\u884c\u3059\u308b\u51e6\u7406<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
        – \u4f7f\u7528 try-with-resources \u5173\u95ed\u8d44\u6e90<\/p>\n
        \u5728\u8bbf\u95ee\u6587\u4ef6\u3001\u6570\u636e\u5e93\u7b49\u5916\u90e8\u8d44\u6e90\u65f6\u9700\u8981\u6267\u884c\u5173\u95ed\u64cd\u4f5c\u4ee5\u65ad\u5f00\u8fde\u63a5\u3002
        \n\u5982\u679c\u4e0d\u5173\u95ed\u8fde\u63a5\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8fde\u63a5\u4fdd\u6301\u6253\u5f00\u72b6\u6001\uff0c\u4ece\u800c\u5bfc\u81f4\u610f\u5916\u7684\u9519\u8bef\u3002
        \n\u5728Java\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528try-with-resources\uff08\u4ec5\u9002\u7528\u4e8e\u5b9e\u73b0\u4e86AutoCloseable\u63a5\u53e3\u7684\u7c7b\uff09\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n
        \/\/ try() \u306e\u4e2d\u3067\u5909\u6570\u5ba3\u8a00\u3057\u305f\u3082\u306e\u304c close \u5bfe\u8c61\u3001\u300c;\u300d\u3067\u8907\u6570\u884c\u8a18\u8f09OK<\/span>\r\ntry<\/span> (<\/span>BufferedReader<\/span> br<\/span> =<\/span> Files<\/span>.<\/span>newBufferedReader<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>)))<\/span> {<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
        – \u7279\u4f8b\u5305\u88c5<\/p>\n
        \u5f53\u628a\u5f02\u5e38\u8f6c\u6362\u4e3a\u53e6\u4e00\u4e2a\u5f02\u5e38\u5e76\u629b\u51fa\u65f6\uff0c\u5e94\u8be5\u5305\u88c5\u539f\u59cb\u5f02\u5e38\uff0c\u4ee5\u514d\u4e22\u5931\u5f02\u5e38\u4fe1\u606f\u3002
        \n\u5982\u679c\u4e0d\u5305\u88c5\u5f02\u5e38\u800c\u662f\u751f\u6210\u53e6\u4e00\u4e2a\u5f02\u5e38\uff0c\u539f\u59cb\u5f02\u5e38\u4fe1\u606f\u5c06\u4f1a\u4e22\u5931\uff0c\u5bfc\u81f4\u65e0\u6cd5\u786e\u5b9a\u9519\u8bef\u7684\u539f\u56e0\u3002
        \n\u6709\u4e24\u79cd\u60c5\u51b5\u53ef\u4ee5\u5c06\u5f02\u5e38\u5305\u88c5\u4e3a\u53e6\u4e00\u4e2a\u5f02\u5e38\u3002<\/p>\n
          \n\u30a2\u30d7\u30ea\uff08\u6a5f\u80fd\uff09\u72ec\u81ea\u306e\u4f8b\u5916\u306b\u3057\u3066\u4f8b\u5916\u51e6\u7406\u3092\u7d71\u4e00\u3059\u308b
          \n\u691c\u67fb\u4f8b\u5916\u3092\u975e\u691c\u67fb\u4f8b\u5916\u306b\u3057\u3066\u547c\u3073\u51fa\u3057\u5143\u306b\u5f71\u97ff(\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc)\u304c\u51fa\u306a\u3044\u3088\u3046\u306b\u3059\u308b\n<\/ul>\n
          try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span> \r\n    \/\/ e(\u4f8b\u5916) \u3092\u5225\u306e\u4f8b\u5916\u3092\u751f\u6210\u3059\u308b\u3068\u304d\u306b\u5f15\u6570\u3068\u3057\u3066\u6e21\u3059<\/span>\r\n    throw<\/span> new<\/span> RuntimeException<\/span>(<\/span>e<\/span>);<\/span>\r\n    \/\/ throw new RuntimeException(\"error message\", e);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u5728\u4f8b\u5916\u5904\u7406\u4e2d\u6709\u95ee\u9898<\/p>\n
          \u5728\u5f02\u5e38\u5904\u7406\u4e2d\uff0c\u5982\u679c\u9690\u85cf\u6216\u6539\u53d8\u5f02\u5e38\uff0c\u90a3\u4e48\u5c31\u65e0\u6cd5\u786e\u5b9a\u5176\u539f\u56e0\u3002\u53e6\u5916\uff0c\u5982\u679c\u5bf9\u5e7f\u6cdb\u7684\u5f02\u5e38\uff08\u4f8b\u5982\uff0cException\u7b49\uff09\u8fdb\u884cthrows\u548ccatch\u5904\u7406\uff0c\u90a3\u4e48\u5373\u4f7f\u662f\u610f\u5916\u7684\u5f02\u5e38\u4e5f\u4f1a\u88ab\u5904\u7406\uff0c\u4ece\u800c\u5bfc\u81f4\u65e0\u6cd5\u5bdf\u89c9\u5230\u9519\u8bef\u3002\u8bf7\u5217\u51fa\u5e94\u907f\u514d\u5728\u5f02\u5e38\u5904\u7406\u4e2d\u505a\u7684\u4e8b\u60c5\u3002<\/p>\n
          \u5c06\u4f8b\u5916\u9690\u85cf\u8d77\u6765 (w\u014d  tu\u00ec)<\/p>\n
          \u53ea\u6709\u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u4e2d\u6587\u9009\u9879:
          \n\u5728\u6355\u83b7\u5f02\u5e38\u540e\u4e0d\u8fdb\u884c\u5904\u7406\u5c31\u7ed3\u675f\uff0c\u8fd9\u5c06\u88ab\u89c6\u4e3a\u9690\u7792
          \n\u5bf9\u4e8e\u4e0d\u5904\u7406\u5f02\u5e38\u7684\u7c7b\uff0c\u5e94\u8be5\u5728\u4e0d\u6355\u83b7\u7684\u60c5\u51b5\u4e0b\u5411\u8c03\u7528\u8005\u629b\u51fa\u5f02\u5e38\uff08\u53ea\u9700\u5728\u65b9\u6cd5\u58f0\u660e\u4e2d\u4f7f\u7528throws\uff09
          \n\u5373\u4f7f\u5728\u5904\u7406\u5f02\u5e38\u65f6\uff0c\u4e5f\u5e94\u8be5\u5728\u6355\u83b7\u5e76\u5904\u7406\u540e\u5411\u8c03\u7528\u8005\u629b\u51fa\u5f02\u5e38\uff08\u4f7f\u7528throws\u548c\u5728\u6355\u83b7\u5904\u7406\u4e2d\u4f7f\u7528throw\uff09
          \n\u5982\u679c\u6709\u610f\u4e0d\u629b\u51fa\u5f02\u5e38\u65f6\uff0c\u6700\u597d\u8bb0\u5f55\u5f02\u5e38\u4fe1\u606f\uff0c\u5982\u65e5\u5fd7\u8f93\u51fa\uff0c\u4ee5\u4fbf\u5907\u67e5
          \n\u5982\u679c\u4e0d\u4fdd\u7559\u4efb\u4f55\u4fe1\u606f\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u672a\u9884\u6599\u7684\u5f02\u5e38\u88ab\u5ffd\u7565\uff0c\u5f15\u53d1\u5176\u4ed6\u95ee\u9898\u7684\u53ef\u80fd\u6027\u3002<\/p>\n
            \n\u96a0\u853d(\u63e1\u308a\u6f70\u3059)\n<\/ul>\n
            try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n    \/\/ \u51e6\u7406\u3057\u306a\u3044\u3067\u63e1\u308a\u6f70\u3059<\/span>\r\n    \/\/ \u610f\u56f3\u7684\u306b\u3084\u308b\u3068\u304d\u3067\u3082 log \u51fa\u529b\u3057\u3066\u307b\u3057\u3044\u3001\u660e\u3089\u304b\u306b\u4e0d\u8981\u306a\u3068\u304d\u3067\u3082\u30b3\u30e1\u30f3\u30c8\u306b\u610f\u56f3\u3092\u8a18\u8f09<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
              \n\u547c\u3073\u51fa\u3057\u5143\u306b throw\uff08\u30e1\u30bd\u30c3\u30c9\u5ba3\u8a00 throws \u306e\u307f\uff09\n<\/ul>\n
              public<\/span> void<\/span> method<\/span>()<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \n\u547c\u3073\u51fa\u3057\u5143\u306b throw (catch \u3057\u3066\u51e6\u7406\u3057\u3066 throw)\n<\/ul>\n
                public<\/span> void<\/span> method<\/span>()<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n    try<\/span> {<\/span>\r\n        List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n        ...<\/span>\r\n    }<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n        ...<\/span>\r\n        throw<\/span> e<\/span>;<\/span> \r\n        \/\/ \u5225\u306e Exception \u306b\u30e9\u30c3\u30d7(\u8a2d\u5b9a)\u3059\u308b\u3067\u3082OK <\/span>\r\n        \/\/ throw new XxxException(e);<\/span>\r\n        \/\/ throw new XxxException(\"messeage\", e);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u6d88\u9664\u4f8b\u5916<\/p>\n
                \u6355\u6349\u5230\u5f02\u5e38\u540e\u4e0d\u751f\u6210\u5e76\u629b\u51fa\u4e0d\u5305\u88c5\u7684\u201c\u5f02\u5e38\u201d\uff0c\u5c06\u4f1a\u4e22\u5931\u5f02\u5e38\u4fe1\u606f\u3002
                \n\u5f53\u5728\u5f02\u5e38\u5904\u7406\u4e2d\u65b0\u5efa\u5f02\u5e38\u65f6\uff0c\u57fa\u672c\u539f\u5219\u662f\u5305\u88c5\u5e76\u8bbe\u7f6e\u5df2\u6355\u83b7\u7684\u5f02\u5e38\uff0c\u4ee5\u907f\u514d\u4e22\u5931\u5f02\u5e38\u4fe1\u606f\u3002
                \n\u5982\u679c\u6545\u610f\u4e0d\u8fdb\u884c\u5305\u88c5\u65f6\uff0c\u6700\u597d\u8bb0\u5f55\u5f02\u5e38\u4fe1\u606f\uff0c\u4f8b\u5982\u901a\u8fc7\u65e5\u5fd7\u8f93\u51fa\u3002
                \n\u5982\u679c\u4e0d\u7559\u4e0b\u4efb\u4f55\u4fe1\u606f\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u610f\u5916\u7684\u5f02\u5e38\u88ab\u653e\u7f6e\u800c\u5f15\u53d1\u5176\u4ed6\u95ee\u9898\u3002<\/p>\n
                  \n\u6d88\u5931\n<\/ul>\n
                  try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n    \/\/ e \u3092\u30e9\u30c3\u30d7(\u8a2d\u5b9a)\u3057\u306a\u3044 Exception \u751f\u6210\u3067\u5143\u306e\u4f8b\u5916\u3092\u6d88\u5931<\/span>\r\n    \/\/ \u610f\u56f3\u7684\u306b\u3084\u308b\u3068\u304d\u3067\u3082 log \u51fa\u529b\u3057\u3066\u307b\u3057\u3044\u3001\u660e\u3089\u304b\u306b\u4e0d\u8981\u306a\u3068\u304d\u3067\u3082\u30b3\u30e1\u30f3\u30c8\u306b\u610f\u56f3\u3092\u8a18\u8f09<\/span>\r\n    throw<\/span> new<\/span> XxxException<\/span>(<\/span>\"message\"<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                    \n\u4f8b\u5916\u3092\u30e9\u30c3\u30d7(\u8a2d\u5b9a)\n<\/ul>\n
                    try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n    \/\/ e \u3092\u30e9\u30c3\u30d7(\u8a2d\u5b9a)\u3059\u308c\u3070OK<\/span>\r\n    throw<\/span> new<\/span> XxxException<\/span>(<\/span>\"message\"<\/span>,<\/span> e<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                    \u5e7f\u6cdb\u7684\u5f02\u5e38\u6307\u5b9a<\/p>\n
                    \u4f7f\u7528throw\u548ccatch\u7b49\u5e7f\u6cdb\u7684\u5f02\u5e38\u7c7b\u65f6\uff0c\u5373\u4f7f\u5bf9\u4e8e\u610f\u5916\u7684\u5f02\u5e38\u4e5f\u4f1a\u8fdb\u884c\u5904\u7406\u3002\u56e0\u6b64\uff0c\u5f53\u53d1\u751f\u975e\u9884\u671f\u7684\u5f02\u5e38\u65f6\uff0c\u53ef\u80fd\u65e0\u6cd5\u6b63\u786e\u5904\u7406\u5f02\u5e38\u3002\u7279\u522b\u662f\u5728\u8fdb\u884c\u6545\u610f\u7684\u9690\u85cf\u7b49\u64cd\u4f5c\u7684\u90e8\u5206\uff0c\u53ef\u80fd\u4f1a\u4e22\u5931\u5f02\u5e38\u4fe1\u606f\u3002<\/p>\n
                      \n\u4f59\u8a08\u306a\u4f8b\u5916\u51e6\u7406\n<\/ul>\n
                      \/\/ Exception \u3067\u306f\u306a\u304f IOException \u306a\u3069\u767a\u751f\u3059\u308b\u4f8b\u5916\u306e\u307f\u306b\u3059\u308b<\/span>\r\npublic<\/span> void<\/span> method<\/span>()<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n    try<\/span> {<\/span>\r\n        List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n        ...<\/span>\r\n    }<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span> {<\/span>\r\n\u3000\u3000\u3000\u3000<\/span>\/\/ Exception \u3067\u306f\u306a\u304f IOException \u306a\u3069\u767a\u751f\u3059\u308b\u4f8b\u5916\u306e\u307f\u306b\u3059\u308b<\/span>\r\n        ...<\/span>\r\n        throw<\/span> e<\/span>;<\/span> \r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                      \u53ea\u8f93\u51fa\u5806\u6808\u8ddf\u8e2a\u7684\u4f8b\u5916\u5904\u7406<\/p>\n
                      \u5728\u6355\u83b7\u7684\u5f02\u5e38\u5904\u7406\u4e2d\uff0c\u53ea\u6709e.printStackTrace()\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u505c\u6b62\u548c\u6839\u636e\u8bbe\u7f6e\u4e22\u5931\u5f02\u5e38\u4fe1\u606f\u3002\u7ed3\u679c\u5c31\u4f1a\u53d8\u5f97\u548c\u9690\u85cf\uff08\u6291\u5236\uff09\u4e00\u6837\u3002\u5728\u6559\u79d1\u4e66\u7b49\u793a\u4f8b\u4e2d\u53ef\u80fd\u5f88\u5e38\u89c1\uff0c\u4f46\u5b9e\u9645\u5e94\u7528\u7a0b\u5e8f\u4e2d\u66f4\u5e38\u7528\u7684\u662f\u65e5\u5fd7\u8f93\u51fa\u800c\u4e0d\u662f\u5806\u6808\u8ddf\u8e2a\u8f93\u51fa\u3002<\/p>\n
                      try<\/span> {<\/span>\r\n    List<\/span><<\/span>String<\/span>><\/span> lines<\/span> =<\/span> Files<\/span>.<\/span>readAllLines<\/span>(<\/span>Paths<\/span>.<\/span>get<\/span>(<\/span>\"xxx\"<\/span>));<\/span>\r\n    ...<\/span>\r\n}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n    \/\/ \u3053\u308c\u306e\u307f\u3060\u3068\u96a0\u853d\u3068\u540c\u3058\u3053\u3068\u306b\u306a\u308b<\/span>\r\n    \/\/ throw \u3057\u3066\u547c\u3073\u51fa\u3057\u5143\u3067\u51e6\u7406\u3059\u308b\u304b log \u51fa\u529b\u3057\u3066\u4f8b\u5916\u60c5\u5831\u3092\u6b8b\u3057\u3066\u307b\u3057\u3044<\/span>\r\n    e<\/span>.<\/span>printStackTrace<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
                      \u6574\u7406Java\u5f02\u5e38\u7684\u4fe1\u606f\u3002 \u79cd\u7c7b\u4e2d\u7684\u4f8b\u5916\uff08\u7ee7\u627f\u5173\u7cfb\uff09 \u30af\u30e9\u30b9 \u6982\u8981 \u4f8b Throwable \u4f8b\u5916\u306e\u57fa\u5e95\u30af\u30e9\u30b9th […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31148","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\nJava \u5f02\u5e38\u7684\u793a\u4f8b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8eJava \u5f02\u5e38\u7684\u793a\u4f8b\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\/java-\u5f02\u5e38\u7684\u793a\u4f8b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java \u5f02\u5e38\u7684\u793a\u4f8b\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8eJava \u5f02\u5e38\u7684\u793a\u4f8b\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java-\u5f02\u5e38\u7684\u793a\u4f8b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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