{"id":93922,"date":"2020-04-19T18:47:57","date_gmt":"2020-04-19T10:47:57","guid":{"rendered":"http:\/\/4563.org\/?p=93922"},"modified":"2020-04-19T18:47:57","modified_gmt":"2020-04-19T10:47:57","slug":"%e4%bd%a0%e5%9c%a8-java-%e9%87%8c%e7%94%a8-try-catch-%e5%a4%9a%e4%b8%8d%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=93922","title":{"rendered":"\u4f60\u5728 Java \u91cc\u7528 try-catch \u591a\u4e0d\uff1f"},"content":{"rendered":"
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\u4f60\u5728 Java \u91cc\u7528 try-catch \u591a\u4e0d\uff1f <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : NoKey <\/span> <\/i> 32<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u4e3a\u4e86\u907f\u514d\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38<\/p>\n

\u6211\u4eec\u8fd9\u91cc\u5927\u90e8\u5206\u65b9\u6cd5\u90fd\u7528 try-catch \u62ec\u8d77\u6765<\/p>\n

\u770b\u8d77\u6765\u5f88\u96be\u770b\u554a\u3002\u3002\u3002<\/p>\n

\u6bd4\u5982\uff0c\u63a5\u6536\u9875\u9762\u4f20\u5165\u7684\u6574\u6570\uff0c\u4f20\u8fc7\u6765\u662f\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u9700\u8981\u7528\u6570\u5b57\u7684\u65f6\u5019\uff0c\u5c31\u4f1a Integer.valueOf()<\/p>\n

\u4f46\u662f\uff0c\u5199\u9875\u9762\u7684\u4eba\u4e0d\u662f\u540c\u4e00\u4e2a\uff0c\u4e5f\u53ef\u80fd\u7ecf\u5e38\u6362\uff0c\u4e5f\u53ef\u80fd\u4e0d\u540c\u9879\u76ee\u7ec4<\/p>\n

\u867d\u7136\u6709\u6587\u6863\uff0c\u4f46\u662f\uff0c\u4e0d\u80fd\u786e\u4fdd\u4e00\u5b9a\u4f1a\u4f20\u5165\u6574\u6570<\/p>\n

\u4e3a\u4e86\u5728\u53ef\u80fd\u51fa\u95ee\u9898\u7684\u65f6\u5019\u4e0d\u4f1a\u51fa\u95ee\u9898\u800c\u80cc\u9505\uff0c\u6211\u4eec\u5c31\u9700\u8981\u7528\u4e0a try catch<\/p>\n

\u6709\u5927\u4f6c\u4f1a\u8bf4\u4f7f\u7528\u524d\u9a8c\u8bc1\u53c2\u6570<\/p>\n

\u6709\u65f6\u5019\u53c2\u6570\u5f88\u591a\uff0c\u6bcf\u4e2a\u90fd\u53bb\u9a8c\u4e00\u6b21\u4e48\uff1f<\/p>\n

\u5404\u4f4d\u5927\u4f6c\u6709\u5565\u597d\u65b9\u6cd5\u4e48\uff1f <\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (40<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : FanError <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u73b0\u5728\u6211\u90fd\u662f throw RuntimeException \u4e86\uff0c\u7136\u540e\u5168\u5c40\u5f02\u5e38\u6355\u83b7\uff0c\u7edf\u4e00\u8fd4\u56de\u62a5\u9519\u4fe1\u606f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : luckyrayyy <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0a+1\uff0c\u76f4\u63a5\u629b\uff0c\u5168\u5c40\u8865 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zhuangzhuang1988 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    <Java8 \u5b9e\u6218>\u91cc\u8fd9\u6837\u626f\u8fc7 P217
    public static Optional<Integer> stringToInt(String s) {
    try {
    return Optional.of(Integer.parseInt(s));
    } catch (NumberFormatException e) {
    return Optional.empty();
    }
    }
    \u7136\u540e\u518d\u5e94\u7528<\/p>\n

    PS: \u5176\u5b9e C#\u5f88\u65e9\u5c31\u6709\u51fd\u6570 tryParse https:\/\/docs.microsoft.com\/en-us\/dotnet\/api\/system.int32.tryparse?view=netframework-4.8 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yjxjn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @luckyrayyy \u8fd9\u4e2a\u5168\u5c40\u8865\u600e\u4e48\u8bf4\uff1f\u6bd4\u5982\u8c03\u7528\u67d0\u5de5\u5177\u7c7b\u91cc\u65b9\u6cd5\u5168\u90e8\u629b\u51fa\u5f02\u5e38\uff0c\u7136\u540e\u518d\u8c03\u7528\u7684 Controller \u91cc\u9762\u63a5\u4e48\uff1f\u80fd\u8be6\u7ec6\u8bf4\u4e00\u4e0b\u5417\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : luckyrayyy <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @yjxjn ExceptionHandler \u6ce8\u89e3 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : asd123456cxz <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @yjxjn \u5982\u679c\u662f Spring \u9879\u76ee\uff0c\u53ef\u4ee5\u65b0\u5efa\u4e00\u4e2a\u5f02\u5e38\u5904\u7406\u7c7b\uff0c\u4f7f\u7528 @ControllerAdvice \u6ce8\u89e3\uff0c\u9ed8\u8ba4\u4f7f\u7528 AOP \u6784\u9020\u51fa\u9488\u5bf9\u5168\u90e8 controller \u7684\u4ee3\u7406\u7c7b\uff0c\u5168\u5c40\u5904\u7406\u5f02\u5e38\u3002\u4e0d\u8fc7\u81ea\u5df1\u5199\u4e00\u4e2a\u5207\u9762\u90e8\u5206\u5730\u5904\u7406\u4e5f\u53ef\u4ee5\uff0c\u987a\u4fbf\u628a\u65e5\u5fd7\u7edf\u8ba1\u4e5f\u505a\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Jrue0011 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    Spring MVC \u7684\u8bdd\uff0cController \u52a0 Validated \u6ce8\u89e3\uff0cMVC \u672c\u8eab\u53c2\u6570\u7ed1\u5b9a\u81ea\u5e26\u7684\u6821\u9a8c\u518d\u52a0\u4e0a\u6821\u9a8c\u6ce8\u89e3\uff0c\u652f\u6301\u7b80\u5355\u53c2\u6570\u3001Form \u5bf9\u8c61\u548c RequestBody \u5bf9\u8c61\uff0c\u8fdb\u5165\u65b9\u6cd5\u524d\u5165\u53c2\u5c31\u6821\u9a8c\u5b8c\u4e86\uff0cControllerAdvice \u6355\u83b7\u6821\u9a8c\u5f02\u5e38\u7edf\u4e00\u8fd4\u56de SmartValidator \u683c\u5f0f\u5316\u540e\u7684\u6821\u9a8c\u7ed3\u679c\uff0c\u8fd8\u652f\u6301\u56fd\u9645\u5316\u3002\u3002\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : superrichman <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6240\u6709\u4f20\u5165\u7684\u53c2\u6570\u90fd\u8981\u9a8c\u8bc1\u3002\u53ef\u4ee5\u641c\u641c java form validation\uff0c\u4e0d\u9700\u8981\u81ea\u5df1\u5199\u4e00\u5806 try catch <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Jrue0011 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Jrue0011 \u53e6\u5916\u8fd9\u6837\u6821\u9a8c\u4e5f\u652f\u6301\u5206\u7ec4\u3002\u3002\u5c31\u662f\u5165\u53c2\u662f\u540c\u4e00\u4e2a bean \u7c7b\uff0c\u8fd9\u4e2a\u63a5\u53e3\u53ea\u6821\u9a8c\u67d0\u51e0\u4e2a\u5c5e\u6027\uff0c\u53e6\u4e00\u4e2a\u63a5\u53e3\u6821\u9a8c\u53e6\u5916\u4e00\u4e9b\u5c5e\u6027 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : limuyan44 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5168\u9760\u5168\u5c40\u6355\u83b7\uff0c\u81ea\u5df1\u57fa\u672c\u4e0d\u4f1a\u7528\uff0c\u9879\u76ee\u91cc\u6bcf\u4e2a controller \u91cc\u9762\u5199\u8fc7 trycatch return \u4e00\u4e2a\u81ea\u5b9a\u4e49 response \u6211\u90fd\u611f\u89c9\u8fd9\u5e2e\u4eba\u6ca1\u6b63\u7ecf\u5b66\u8fc7 spring mvc,\u6846\u67b6\u5b89\u6392\u7684\u660e\u660e\u767d\u767d\u7684\uff0c\u4e0d\u9700\u8981\u81ea\u5df1\u505a\u8fd9\u79cd\u4e11\u964b\u7684\u5199\u6cd5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : optional <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    lombok <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : loryyang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    Spring MVC \u76f4\u63a5\u652f\u6301\u4e86\u554a\uff0c\u90fd\u4e0d\u9700\u8981\u4f60\u6765\u5904\u7406\uff0c\u5305\u62ec\u7c7b\u578b\u548c\u7a7a\u5224\u65ad <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zhuawadao <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ControllerAdvice <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : araaaa <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    let it crash <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xuanbg <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e00\u822c\u90fd\u662f\u76f4\u63a5\u629b\uff0c\u7136\u540e\u5168\u5c40\u6355\u83b7\u3002\u53ea\u6709\u786e\u5b9a\u9700\u8981\u5904\u7406\u7684\u5f02\u5e38\uff0c\u624d try\/catch \u8d77\u6765\u81ea\u5df1\u5904\u7406\u6389\u5f02\u5e38\u3002\u8b6c\u5982\u5904\u7406\u961f\u5217\u6d88\u606f\u7684\u65f6\u5019\uff0c\u5f02\u5e38\u4e86\u8981\u5199\u56de\u6b7b\u4fe1\u961f\u5217\uff0c\u4ee5\u514d\u4e22\u6d88\u606f\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : paragon <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5173\u952e\u5b57 JSR349 ControllerAdvice <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : mawerss1 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5f3a\u70c8\u53cd\u5bf9\u4e0a\u9762\u7684\u628a\u5f02\u5e38 catch \u6389\u8fd4\u56de\u7a7a\u503c\u7684\u505a\u6cd5\uff0c\u7834\u574f\u4e86\u8bed\u4e49\u751a\u81f3\u53ef\u80fd\u4ea7\u751f\u4e00\u4e9b\u53d1\u73b0\u4e0d\u4e86\u7684\u903b\u8f91\u95ee\u9898\uff0c\u5982\u679c\u975e\u8981 catch\uff0c\u5efa\u8bae\u518d\u5411\u4e0a\u5c42\u629b\u51fa\u4e00\u4e2a\u5b9a\u4e49\u5f02\u5e38 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : oneisall8955 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd9\u79cd\u8fd0\u884c\u65f6\u7684\uff0c\u4e0d\u7528\u7ba1\u5427\uff0c\u524d\u7aef\u4f20\u8fc7\u6765\u9519\u8bef\u7684\uff0c\u4e0d\u6309\u7167\u63a5\u53e3\u5b9a\u4e49\u5199\uff0c\u80af\u5b9a\u662f\u5bf9\u65b9\u7684\u95ee\u9898\uff0c\u4e0d\u662f\u6211\u7684\u95ee\u9898\u4e3a\u5565\u8981\u7ba1\u5462 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    crash early
    crash often <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yanyueio <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u548c\u4e0a\u89c2\u70b9\u5927\u6982\u7c7b\u4f3c:<\/p>\n

    * Java Core: \u907f\u5f00 checked \u5f02\u5e38\u8fd9\u7c7b\u7f16\u8bd1\u65f6\u5c31\u5f3a\u8feb\u4f60\u5904\u7406\u7684\u5f02\u5e38\uff0c\u5176\u4ed6\u5f02\u5e38 let crash \u3002
    * \u6846\u67b6: \u6bd4\u5982 Spring \u7cfb\uff0c\u5168\u5c40\u5904\u7406\uff0c\u800c\u4e14\u642d\u5efa\u67b6\u5b50\u7684\u8d1f\u8d23\u4eba\u5e94\u8be5\u4f1a\u63d0\u524d\u5236\u5b9a\u597d\u89c4\u8303&\u6a21\u677f\u4e86\u3002<\/p>\n

    \u81f3\u4e8e\u8bf4\u5165\u53c2\u7684\u68c0\u9a8c\uff0c\u90a3\u8981\u770b\u5927\u5bb6\u7ea6\u5b9a\u7684\u662f\u4f9d\u9760\u8fd4\u56de\u503c(json \u5bf9\u8c61\u6216\u8005\u5176\u4ed6)\u6765\u5224\u65ad\u8fd8\u662f\u662f\u4f9d\u9760\u629b\u5f02\u5e38\u6765\u534f\u5546\u4e86(\u7c7b\u4f3c\u9632\u5fa1\u5f0f\u7f16\u7a0b\u7c7b\u7684\u5b98\u6837\u8bdd)\uff0c\u8fd9\u592a\u7075\u6d3b\u4e86\uff0c\u8fd8\u662f\u770b\u56e2\u961f\u5982\u4f55\u7ea6\u5b9a\u7684\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : orm <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u76ee\u524d\u6211\u7528 try catch \u6700\u591a\u7684\u5c31\u662f\u5728\u4e00\u4e9b\u5b9a\u65f6\u4efb\u52a1\u4e0a\uff0c\u907f\u514d\u6267\u884c\u8fc7\u7a0b\u7ec8\u7aef <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : cshijiel <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    1. Bean Validation(JSR380)
    2. @ControllerAdvice
    3. BizRuntimeException(\u5efa\u8bae) <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xiaofan2 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @cshijiel BizRuntimeException \u662f\u5565\uff1f\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ganning <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Validated \u53ef\u4ee5\u4e86\u89e3\u4e00\u4e0b\u8fd9\u4e2a\u6ce8\u89e3 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : kanepan19 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6709\u4e8b\u52a1\u7684\u5730\u65b9\u629b\u5f02\u5e38\uff0c \u6ca1\u4e8b\u52a1\u7684\u5730\u65b9\u90fd\u6293\uff0c\u6293\u4e86\u628a\u5f02\u5e38\u653e\u5230 resultMsg \u653e\u5230 result \u91cc\u8fd4\u56de\u3002
    \u5168\u5c40\u5f02\u5e38\u80af\u5b9a\u6709\uff0c\u4e2a\u4eba\u4e0d\u559c\u6b22\u968f\u4fbf\u629b\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : chendy <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5de5\u5177\u7c7b\u91cc\u5199\u633a\u591a\u7684\uff0c\u5403\u6389\u4e00\u4e9b\u4e0d\u53ef\u80fd\u51fa\u73b0\u7684 checked exception \uff08\u7136\u540e\u629b\u4e00\u4e2a\u81ea\u5b9a\u4e49 unchecked exceptoin \uff09\uff0c\u6bd4\u5982\u52a0\u5bc6\u7b97\u6cd5\u6ca1\u627e\u5230\uff0c\u7f16\u7801\u672a\u627e\u5230\u8fd9\u79cd\u2026 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yeqizhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u662f\u7528\u6237\u586b\u7684\u4e1c\u897f\u7684\u8bdd\uff0c\u6ca1\u5fc5\u8981\uff0c\u548c\u524d\u7aef\u8c03\u901a\u4e86\u4e4b\u540e\u4e00\u822c\u6ca1\u6709\u95ee\u9898\uff0c\u6709\u95ee\u9898\u4e5f\u662f\u8981\u627e\u4e3a\u5565\u6570\u636e\u4f1a\u9519\u3002
    \u5982\u679c\u662f\u7528\u6237\u586b\u7684\uff0c\u524d\u7aef\u5148\u68c0\u9a8c\uff0c\u7136\u540e\u540e\u7aef\u4e5f\u8981\u505a\u68c0\u9a8c\u6216\u8005\u6355\u83b7\u5f02\u5e38\uff0c\u6211\u9047\u5230\u6d4b\u8bd5\u6d4b\u63a5\u53e3\u76f4\u63a5\u4f20\u4e0d\u7b26\u5408\u7684\u6570\u636e\u7136\u540e\u63d0 bug \u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : mosliu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7528 common lang3 \u7684 NUmberUtils \u7684 toInt \u4e0d\u884c\u4e48? \u9519\u8bef\u7684\u8f6c\u51fa\u6765\u4e2a\u9ed8\u8ba4\u503c \u68c0\u67e5\u76f4\u63a5\u8fd4\u56de\u9519\u8bef\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : aitaii <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xiaofan2 \u7ee7\u627f RuntimeException \u7684\u81ea\u5b9a\u4e49\u4e1a\u52a1\u5f02\u5e38\uff0cExceptionHandler \u91cc\u5904\u7406\u5f02\u5e38\u4fe1\u606f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : sunxiansong <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u63d2\u4e00\u4e0b\u5634\u3002\u3002<\/p>\n

    \u4e4b\u524d\u5199 java,try catch \u7528\u7684\u4e0d\u591a\uff0c\u53cd\u6b63\u6709\u6bdb\u75c5\u90fd\u629b\u51fa\u53bb\u3002<\/p>\n

    \u73b0\u5728\u5199 go, \u5404\u79cd
    “`go
    if err != nil {
    return err
    }
    “`
    \u9047\u5230\u8fd4\u56de\u7ed3\u679c\u6709 error \u7684\u90fd\u8981\u8fd9\u4e48\u6765\u4e00\u4e0b\uff0c\u590d\u6742\u70b9\u7684\u51fd\u6570\u80fd\u6765\u597d\u51e0\u6b21<\/p>\n

    \u89c9\u5f97 java \u7684\u8bdd\uff0c\u5bf9\u4e8e\u9700\u8981\u7279\u522b\u8bc6\u522b\u7684\u9519\u8bef\uff0c\u53ef\u4ee5\u68c0\u67e5\u4e0b\uff0c\u4e0d\u7136\u5c31\u76f4\u63a5\u629b\u51fa\u5427\uff0c\u5927\u90e8\u5206\u6b63\u5e38\u6d41\u7a0b\u80fd\u8d70\u901a\u5c31\u884c<\/p>\n

    \u6709\u4e9b\u51fd\u6570\u58f0\u660e\u7684\u5f02\u5e38\u751a\u81f3\u51e0\u4e4e\u4e0d\u4f1a\u51fa\u73b0\uff0c\u8ffd\u6c42\u5b8c\u5584\u7684\u9519\u8bef\u5904\u7406\u8986\u76d6\u662f\u4e0d\u73b0\u5b9e\u7684\uff0c\u8fd8\u4e0d\u5982\u5b8c\u5584\u9519\u8bef\u76d1\u63a7\u5904\u7406\u673a\u5236\uff0c\u907f\u514d\u9690\u5f0f\u9519\u8bef\u5904\u7406\u3001\u9519\u8bef\u9057\u6f0f\uff0c\u5b9a\u671f\u7684\u68c0\u67e5\u9519\u8bef\u60c5\u51b5\u518d\u5b8c\u5584\u4ee3\u7801<\/p>\n

    \u5982\u679c\u53ea\u662f\u4e0d\u559c\u6b22 try catch \u98ce\u683c\uff0c\u90a3\u81ea\u5df1\u641e\u4e00\u5957\u9519\u8bef-\u7ed3\u679c\u8fd4\u56de\u65b9\u6848\u5c31\u884c <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : EminemW <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6211\u6709\u4e2a\u7591\u95ee\uff0c\u8fd9\u4e2a\u629b\u5f02\u5e38\u4f1a\u5f71\u54cd\u6027\u80fd\u5417\uff0c\u4e4b\u524d\u4e0d\u77e5\u9053\u5728\u54ea\u91cc\u770b\u8fc7\u4e0d\u8981\u968f\u4fbf\u629b\u5f02\u5e38\u3002\u3002\u6211\u7684\u505a\u6cd5\u7684\u662f return Result.error(code, msg); <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : chanchan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5f88\u591a\u5730\u65b9\u9700\u8981\u5199\uff0c\u4f46\u662f\u61d2\u5f97\u5199 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lihongming <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u62ff\u5f02\u5e38\u5f53\u65e5\u5e38\u53cd\u9988\u7684\u8def\u8fc7\u3002<\/p>\n

    \u53ea\u8981\u6570\u636e\u4e0d\u5408\u683c\u5c31\u629b\u5f02\u5e38\u51fa\u53bb\uff0c\u8c03\u7528\u65b9\u4e0d try catch \u600e\u4e48\u6d3b\u554a\uff1f <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yukiloh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4ee5\u524d\u81ea\u5df1\u559c\u6b22\u6254\uff0c\u540e\u6765\u770b\u5230\u54ea\u91cc\u8bf4\u80fd\u6293\u5c3d\u91cf\u5f53\u4e0b\u6293\uff0c\u4e0d\u80fd\u7684\u518d\u6254\uff0c\u7ed9\u641e\u8ff7\u7cca\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : purensong <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5b9a\u4e49\u4e00\u4e2a @ControllerAdvice \u4fee\u9970\u7684\u5168\u5c40\u5f02\u5e38\u5904\u7406\u7c7b\uff0c\u5b9e\u73b0\u591a\u4e2a\u65b9\u6cd5\u52a0\u4e0a @ExceptionHandler(value = Exception.class)
    \u6ce8\u89e3\uff0cvalue \u662f Exception \u7684\u5b50\u7c7b\uff0c\u4f8b\u5982\u8981\u68c0\u67e5\u5fc5\u987b\u7684\u5b57\u6bb5\u4f20\u5165\uff0c\u7528 MethodArgumentNotValidException\uff0c\u5177\u4f53\u7684\u5b57\u6bb5\u4e0d\u80fd\u4e3a\u7a7a\u7528 @NotNull \u6ce8\u89e3\u3002
    \u8fd9\u662f\u901a\u7528\u7684\u5f02\u5e38\u5904\u7406\uff0c\u5982\u679c\u8fd8\u6709\u4e1a\u52a1\u5f02\u5e38\uff0c\u9700\u8981\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u6211\u4e60\u60ef\u76f4\u63a5\u5728\u4ee3\u7801\u91cc\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\uff0c\u4e5f\u90fd\u4ea4\u7531\u5168\u5c40\u5f02\u5e38\u7c7b\u53bb\u7279\u6b8a\u5904\u7406 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : purensong <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u53ef\u4ee5\u8bf4\u4ee3\u7801\u91cc try catch \u53ef\u80fd\u90fd\u662f\u8fde\u63a5\u6d88\u606f\u5173\u95ed\uff0c\u6587\u4ef6\u4e0d\u5b58\u5728\u8fd9\u4e9b\u4ee3\u7801\uff0c\u5f88\u5c11\u4f1a\u51fa\u73b0\u7c7b\u578b\u68c0\u67e5\u8fd9\u79cd\u4f4e\u7ea7\u522b\u7684\u6355\u83b7\uff0c\u8fd9\u79cd\u68c0\u67e5\u4ee3\u7801\u5927\u91cf\u5b58\u5728\uff0c\u800c\u4e14\u7ea7\u522b\u8f83\u4f4e\uff0c\u4e0d\u4f1a\u6709\u51fa\u73b0\u5f02\u5e38\u540e\u7684\u5904\u7406\uff0c\u57fa\u672c\u5c31\u662f\u62a5\u9519\u63d0\u793a\u5230\u524d\u7aef\u5c31\u6ca1\u6709\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : pabno <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    1. \u4ece\u9879\u76ee\u6574\u4f53\u8d28\u91cf\u7684\u89d2\u5ea6\u51fa\u53d1\uff0c\u63a5\u53e3\u7ea6\u5b9a\u5c31\u5e94\u8be5\u9075\u5b88\uff0c\u5982\u679c\u4e0d\u662f\u5f3a\u5236\u7ea6\u675f\uff0c\u5373\u4f7f\u540e\u7aef\u53ef\u4ee5\u517c\u5bb9\u8fd9\u79cd\u6570\u636e\u683c\u5f0f\uff0c\u524d\u6bb5\u6307\u4e0d\u5b9a\u4e5f\u4f1a\u56e0\u4e3a\u6570\u636e\u683c\u5f0f\u7684\u4e0d\u4e00\u81f4\u800c\u5f15\u53d1\u65b0\u7684\u95ee\u9898\uff0c\u63d0\u524d\u66b4\u9732\u95ee\u9898\u4f1a\u51cf\u5c11\u4fee\u6b63\u9519\u8bef\u7684\u6210\u672c<\/p>\n

    2. \u540e\u7aef\u53c2\u6570\u9a8c\u8bc1\u53ef\u4ee5\u4f7f\u7528\u6821\u9a8c\u6846\u67b6\u5199\u8868\u8fbe\u5f0f\u81ea\u52a8\u6821\u9a8c\uff0c\u7136\u540e\u7edf\u4e00\u6355\u83b7\u6821\u9a8c\u5f02\u5e38\u8fd4\u56de\u7edf\u4e00\u6570\u636e <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xiangyuecn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8f6c\u6362\u6210 int \u65f6\uff0c\u8fd4\u56de Integer \u7c7b\u578b\uff0c\u8981\u4e48\u8fd4\u56de\u4e00\u4e2a\u6570\u8981\u4e48\uff0c\u8fd4\u56de\u4e00\u4e2a null\uff0c\u62d2\u7edd\u4f7f\u7528 try catch<\/p>\n

    byte \u7edf\u4e00\u7528 short \u7c7b\u578b\uff0c\u62d2\u7edd\u8d1f\u6570 \uff08 doge <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : vwym <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    web \u9879\u76ee\u5c31\u76f4\u63a5\u629b\u51fa\u53bb\u5168\u5c40\u5904\u7406\u4e86\uff0c\u53c2\u6570\u9a8c\u8bc1\u53ef\u4ee5\u8003\u8651\u7528 Validations \u6ce8\u89e3\u5b8c\u4e8b\u3002
    \u4e0d\u505a try catch <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Mystery0 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @EminemW \u786e\u5b9e\u6709\u4e00\u70b9\u5f71\u54cd\uff0c\u4e0d\u8fc7\u7167\u4f60\u7684\u8fd9\u6837\u5b50\u8fd4\u56de Result.error(code, msg)\uff0c\u8c03\u7528\u6df1\u4e86\u4ee5\u540e\uff0c\u6bcf\u4e00\u5c42\u90fd\u8981\u53bb\u505a\u6267\u884c\u7ed3\u679c\u7684\u5224\u65ad\uff0c\u5199\u7740\u5199\u7740\u5c31\u53d8\u6210\u624b\u5199 Java \u7684\u5f02\u5e38\u5904\u7406\u673a\u5236\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u4f60\u5728 Java \u91cc\u7528 try-ca…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/93922"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=93922"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/93922\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=93922"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=93922"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=93922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}