{"id":793,"date":"2024-03-17T17:03:49","date_gmt":"2024-03-17T09:03:49","guid":{"rendered":"https:\/\/blog.yiming1234.cn\/?p=793"},"modified":"2024-03-17T17:12:03","modified_gmt":"2024-03-17T09:12:03","slug":"%e5%90%8e%e7%ab%af%e7%b3%bb%e7%bb%9f%e5%bc%80%e5%8f%91%e4%b9%8b-%e6%8e%a5%e5%8f%a3%e5%8f%82%e6%95%b0%e6%a0%a1%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/blog.yiming1234.cn\/index.php\/2024\/%e5%90%8e%e7%ab%af%e7%b3%bb%e7%bb%9f%e5%bc%80%e5%8f%91%e4%b9%8b-%e6%8e%a5%e5%8f%a3%e5%8f%82%e6%95%b0%e6%a0%a1%e9%aa%8c\/","title":{"rendered":"\u540e\u7aef\u7cfb\u7edf\u5f00\u53d1\u4e4b\u2014\u2014\u63a5\u53e3\u53c2\u6570\u6821\u9a8c"},"content":{"rendered":"\n

\u524d\u8a00<\/h2>\n\n\n\n

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\u6b63\u6587<\/h2>\n\n\n\n

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    \n
  1. . \uff08\u70b9\u53f7\uff09\uff1a<\/strong> \u5339\u914d\u9664\u6362\u884c\u7b26\u4ee5\u5916\u7684\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\u3002<\/li>\n\n\n\n
  2. \\d\uff1a<\/strong> \u5339\u914d\u4e00\u4e2a\u6570\u5b57\u5b57\u7b26\u3002<\/li>\n\n\n\n
  3. \\w\uff1a<\/strong> \u5339\u914d\u4e00\u4e2a\u5355\u8bcd\u5b57\u7b26\uff0c\u5305\u62ec\u5b57\u6bcd\u3001\u6570\u5b57\u548c\u4e0b\u5212\u7ebf\u3002<\/li>\n\n\n\n
  4. \\s\uff1a<\/strong> \u5339\u914d\u4e00\u4e2a\u7a7a\u767d\u5b57\u7b26\uff0c\u5305\u62ec\u7a7a\u683c\u3001\u5236\u8868\u7b26\u3001\u6362\u884c\u7b26\u7b49\u3002<\/li>\n\n\n\n
  5. ^\uff1a<\/strong> \u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\u4f4d\u7f6e\u3002<\/li>\n\n\n\n
  6. $\uff1a<\/strong> \u5339\u914d\u5b57\u7b26\u4e32\u7684\u7ed3\u675f\u4f4d\u7f6e\u3002<\/li>\n\n\n\n
  7. \\b\uff1a<\/strong> \u5339\u914d\u4e00\u4e2a\u5355\u8bcd\u8fb9\u754c\u3002<\/li>\n\n\n\n
  8. []\uff1a<\/strong> \u5b57\u7b26\u96c6\uff0c\u5339\u914d\u5176\u4e2d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\u3002<\/li>\n\n\n\n
  9. |\uff1a<\/strong> \u6216\uff0c\u7528\u4e8e\u5728\u4e24\u4e2a\u6a21\u5f0f\u4e4b\u95f4\u9009\u62e9\u4e00\u4e2a\u3002<\/li>\n\n\n\n
  10. \uff1f\uff1a<\/strong> \u5339\u914d\u96f6\u6b21\u6216\u4e00\u6b21\u524d\u9762\u7684\u5143\u7d20\u3002<\/li>\n\n\n\n
  11. +\uff1a<\/strong> \u5339\u914d\u4e00\u6b21\u6216\u591a\u6b21\u524d\u9762\u7684\u5143\u7d20\u3002<\/li>\n\n\n\n
  12. ***\uff1a<\/strong> \u5339\u914d\u96f6\u6b21\u6216\u591a\u6b21\u524d\u9762\u7684\u5143\u7d20\u3002<\/li>\n\n\n\n
  13. {n}\uff1a<\/strong> \u5339\u914d\u524d\u9762\u5143\u7d20\u6070\u597d n \u6b21\u3002<\/li>\n\n\n\n
  14. {n,}\uff1a<\/strong> \u5339\u914d\u524d\u9762\u5143\u7d20\u81f3\u5c11 n \u6b21\u3002<\/li>\n\n\n\n
  15. {n,m}\uff1a<\/strong> \u5339\u914d\u524d\u9762\u5143\u7d20\u81f3\u5c11 n \u6b21\uff0c\u81f3\u591a m \u6b21\u3002<\/li>\n<\/ol>\n\n\n\n

    \u6b63\u5f0f\u64cd\u4f5c<\/h3>\n\n\n\n

    \u63a5\u53e3\u8fd4\u56de\u7684\u54cd\u5e94\u4fe1\u606f\u683c\u5f0f\u8981\u4ee5\u63a5\u53e3\u6587\u6863\u4e3a\u51c6\u3002<\/p>\n\n\n\n

    \u8fd9\u91cc\u7684\u4fe1\u606f\u54cd\u5e94\u683c\u5f0f\u7edf\u4e00\u4e3a{code message data}\uff0c\u5728Result.java\u4e2d\u5df2\u7ecf\u8fdb\u884c\u4e86\u89c4\u8303\u3002<\/p>\n\n\n\n

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    <dependency>\n      <groupId>org.springframework.boot<\/groupId>\n      <artifactId>spring-boot-starter-validation<\/artifactId>\n<\/dependency><\/code><\/pre>\n\n\n\n
    \u6211\u4eec\u53ea\u9700\u8981\u5728\u53c2\u6570\u524d\u6dfb\u52a0\u4e0b\u9762\u8fd9\u6837\u7684\u5b57\u6bb5\uff0c\u5c31\u53ef\u4ee5\u8d77\u5230\u6821\u9a8c\u7684\u4f5c\u7528<\/p>\n\n\n\n
    package org.example.controller;\r\n\r\nimport jakarta.validation.constraints.Pattern;\r\nimport org.example.pojo.Result;\r\nimport org.example.pojo.User;\r\nimport org.example.service.UserService;\r\nimport org.springframework.beans.factory.annotation.Autowired;\r\nimport org.springframework.validation.annotation.Validated;\r\nimport org.springframework.web.bind.annotation.PostMapping;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RestController;\r\n\r\n@RestController\r\n@RequestMapping(\"\/user\")\r\n@Validated\r\npublic class UserController {\r\n\r\n    @Autowired\r\n    private UserService userService;\r\n\r\n    @PostMapping(\"register\")\r\n    public Result register(@Pattern(regexp = \"^\\\\S{5,16}$\") String username, @Pattern(regexp = \"^\\\\S{5,16}$\") String password) {\r\n        \/\/\u67e5\u8be2\u7528\u6237\r\n        User u = userService.findByUserName(username);\r\n        if (u == null) {\r\n            \/\/\u6ca1\u6709\u5360\u7528\r\n            \/\/\u6ce8\u518c\r\n            userService.register(username, password);\r\n            return Result.success();\r\n        } else {\r\n            \/\/\u5360\u7528\r\n            return Result.error(\"\u7528\u6237\u540d\u5df2\u88ab\u5360\u7528\");\r\n        }\r\n        \/\/\u6ce8\u518c\r\n\r\n    }\r\n}\r\n<\/code><\/pre>\n\n\n\n
    \u7136\u800c\u8fd4\u56de\u7684\u53c2\u6570\u683c\u5f0f\u662f{timestamp status error path}\uff0c\u4e0d\u7b26\u5408\u8981\u6c42<\/p>\n\n\n\n
    \u6700\u540e\u518d\u6765\u89c4\u8303\u4e00\u4e0b\u54cd\u5e94\u4fe1\u606f\u7684\u683c\u5f0f\u4ee5\u7b26\u5408\u63a5\u53e3\u6587\u6863\u7684\u8981\u6c42\u3002<\/p>\n\n\n\n
    \u5728org.example\u6587\u4ef6\u52a0\u4e0b\u65b0\u5efaException\u6587\u4ef6\u5939\uff0c\u5176\u4e0b\u65b0\u5efaJava\u7c7bGlobalExceptionHandler.java\u3002<\/p>\n\n\n\n
    package org.example.exception;\n\nimport org.example.pojo.Result;\nimport org.springframework.util.StringUtils;\nimport org.springframework.web.bind.annotation.ExceptionHandler;\nimport org.springframework.web.bind.annotation.RestControllerAdvice;\n\n@RestControllerAdvice\npublic class GlobalExceptionHandler {\n    @ExceptionHandler(Exception.class)\n    public Result handleException(Exception e){\n        e.printStackTrace();\n        return Result.error(StringUtils.hasLength(e.getMessage())? e.getMessage() : \"\u64cd\u4f5c\u5931\u8d25\");\n    }\n}\n<\/code><\/pre>\n\n\n\n
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    \"\"<\/div><\/figure>\n\n\n\n
    \u5c3e\u58f0<\/h2>\n\n\n\n
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