\n<\/h2>\n
- \n
- \n\t\t\u6bd4\u5982\u7528\u6237\u540d\u957f\u5ea6\u5fc5\u987b\u57285-20\u4e4b\u95f4\uff0c\u800c\u4e14\u5fc5\u987b\u4ee5\u5b57\u6bcd\u5f00\u5934\uff0c\u53ef\u5305\u542b\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff1b\n\t<\/li>\n
- \n\t\t\u6bd4\u5982\u6ce8\u518c\u7528\u6237\u65f6 \u7528\u6237\u540d\u5df2\u7ecf\u5b58\u5728\u6216\u90ae\u7bb1\u5df2\u7ecf\u5b58\u5728\u7b49\uff1b\n\t<\/li>\n
- \n\t\t\u6bd4\u5982\u53bb\u4e00\u4e9b\u8bba\u575b\u7ecf\u5e38\u4f1a\u53d1\u73b0\uff0c\u60a8\u53d1\u7684\u5e16\u5b50\u4e2d\u5305\u542b×××\u5c4f\u853d\u5173\u952e\u5b57\u7b49\u3002\n\t<\/li>\n<\/ol>\n
\n\t\u8fd8\u6709\u5f88\u591a\u6570\u636e\u4e0d\u5408\u6cd5\u7684\u573a\u666f\uff0c\u5728\u6b64\u5c31\u4e0d\u7f57\u5217\u4e86\uff0c\u5bf9\u4e8e\u6570\u636e\u4e0d\u5408\u6cd5\uff0cSpring Web MVC\u63d0\u4f9b\u4e86\u4e24\u79cd\u9a8c\u8bc1\u65b9\u5f0f\uff1a\n<\/p>\n
- \n
- \n\t\t\u7f16\u7a0b\u5f0f\u9a8c\u8bc1\u5668\u9a8c\u8bc1\n\t<\/li>\n
- \n\t\t\u58f0\u660e\u5f0f\u9a8c\u8bc1\n\t<\/li>\n<\/ul>\n
\n\t\u7f16\u7a0b\u5f0f\u9a8c\u8bc1\u5668
\n<\/h2>\n\r\npackage org.springframework.validation; \r\n\tpublic interface Validator { \r\n\tboolean supports(Class<?> clazz); \r\n\tvoid validate(Object target, Errors errors); \r\n}<\/pre>\n- \n
- \n\t\tValidator\u63a5\u53e3\uff1a\u9a8c\u8bc1\u5668\uff0c\u7f16\u7a0b\u5b9e\u73b0\u6570\u636e\u9a8c\u8bc1\u7684\u63a5\u53e3\uff1b\n\t<\/li>\n
- \n\t\tsupports\u65b9\u6cd5\uff1a\u5f53\u524d\u9a8c\u8bc1\u5668\u662f\u5426\u652f\u6301\u6307\u5b9a\u7684clazz\u9a8c\u8bc1\uff0c\u5982\u679c\u652f\u6301\u8fd4\u56detrue\u5373\u53ef\uff1b\n\t<\/li>\n
- \n\t\tvalidate\u65b9\u6cd5\uff1a\u9a8c\u8bc1\u7684\u5177\u4f53\u65b9\u6cd5\uff0ctarget\u53c2\u6570\u8868\u793a\u8981\u9a8c\u8bc1\u7684\u76ee\u6807\u5bf9\u8c61\uff08\u5982\u547d\u4ee4\u5bf9\u8c61\uff09\uff0cerrors\u8868\u793a\u9a8c\u8bc1\u51fa\u9519\u540e\u5b58\u653e\u9519\u8bef\u4fe1\u606f\u7684\u9519\u8bef\u5bf9\u8c61\u3002\n\t<\/li>\n<\/ul>\n
\n\t\u9a8c\u8bc1\u5668\u5b9e\u73b0
\n<\/h2>\n\r\npackage com.xttblog.chapter4.web.controller.support.validator; \r\n\/\/\u7701\u7565import \r\npublic class UserModelValidator implements Validator { \r\n private static final Pattern USERNAME_PATTERN = Pattern.compile("[a-zA-Z]\\\\w{4,19}"); \r\n private static final Pattern PASSWORD_PATTERN = Pattern.compile("[a-zA-Z0-9]{5,20}"); \r\n private static final Set<String> FORBINDDDEN_WORD_SET = new HashSet<String>(); \r\n static { \r\n FORBINDDDEN_WORD_SET.add("fuc k"); \/\/\u5220\u6389\u7a7a\u683c \r\n FORBINDDDEN_WORD_SET.add("admin"); \r\n } \r\n @Override \r\n public boolean supports(Class<?> clazz) { \r\n return UserModel.class == clazz;\/\/\u8868\u793a\u53ea\u5bf9UserModel\u7c7b\u578b\u7684\u76ee\u6807\u5bf9\u8c61\u5b9e\u65bd\u9a8c\u8bc1 \r\n } \r\n @Override \r\n public void validate(Object target, Errors errors) { \r\n \/\/\u8fd9\u4e2a\u8868\u793a\u5982\u679c\u76ee\u6807\u5bf9\u8c61\u7684username\u5c5e\u6027\u4e3a\u7a7a\uff0c\u5219\u8868\u793a\u9519\u8bef\uff08\u7b80\u5316\u6211\u4eec\u624b\u5de5\u5224\u65ad\u662f\u5426\u4e3a\u7a7a\uff09 \r\n ValidationUtils.rejectIfEmpty(errors, "username", "username.not.empty"); \r\n UserModel user = (UserModel) target; \r\n if(!USERNAME_PATTERN.matcher(user.getUsername()).matches()) { \r\n errors.rejectValue("username", "username.not.illegal");\/\/\u5982\u679c\u7528\u6237\u540d\u4e0d\u5408\u6cd5 \r\n } \r\n for(String forbiddenWord : FORBINDDDEN_WORD_SET) { \r\n if(user.getUsername().contains(forbiddenWord)) { \r\n errors.rejectValue("username", "username.forbidden", \r\n\t\t\t new Object[]{forbiddenWord}, "\u60a8\u7684\u7528\u6237\u540d\u5305\u542b\u975e\u6cd5\u5173\u952e\u8bcd");\/\/\u7528\u6237\u540d\u5305\u542b\u5c4f\u853d\u5173\u952e\u5b57 \r\n break; \r\n } \r\n } \r\n if(!PASSWORD_PATTERN.matcher(user.getPassword()).matches()) { \r\n errors.rejectValue("password","password.not.illegal", "\u5bc6\u7801\u4e0d\u5408\u6cd5");\/\/\u5bc6\u7801\u4e0d\u5408\u6cd5 \r\n } \r\n } \r\n}<\/pre>\n- \n
- \n\t\tsupports\u65b9\u6cd5\uff1a\u8868\u793a\u53ea\u5bf9UserModel\u7c7b\u578b\u7684\u5bf9\u8c61\u9a8c\u8bc1\uff1b\n\t<\/li>\n
- \n\t\tvalidate\u65b9\u6cd5\uff1a\u6570\u636e\u9a8c\u8bc1\u7684\u5177\u4f53\u65b9\u6cd5\uff0c\u6709\u5982\u4e0b\u51e0\u4e2a\u9a8c\u8bc1\uff1a\n\t<\/li>\n<\/ul>\n
\n\t\u7528\u6237\u540d\u4e0d\u5408\u6cd5\uff08\u957f\u5ea65-20\uff0c\u4ee5\u5b57\u6bcd\u5f00\u5934\uff0c\u968f\u540e\u53ef\u4ee5\u662f\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff09\n<\/p>\n
\r\nUSERNAME_PATTERN.matcher(user.getUsername()).matches() \/\/\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1\r\nerrors.rejectValue("username", "username.not.illegal");\/\/\u9a8c\u8bc1\u5931\u8d25\u4e3ausername\u5b57\u6bb5\u6dfb\u52a0\u9519\u8bef\u7801<\/pre>\n\n\t\u5c4f\u853d\u5173\u952e\u8bcd\uff1a\u5373\u7528\u6237\u540d\u4e2d\u542b\u6709\u4e0d\u5408\u6cd5\u7684\u6570\u636e\uff08\u5982admin\uff09\n<\/p>\n
\r\nuser.getUsername().contains(forbiddenWord) \/\/\u7528contains\u6765\u5224\u65ad\u6211\u4eec\u7684\u7528\u6237\u540d\u4e2d\u662f\u5426\u542b\u6709\u975e\u6cd5\u5173\u952e\u8bcd\r\nerrors.rejectValue("username", "username.forbidden", new Object[]{forbiddenWord}, "\u60a8\u7684\u7528\u6237\u540d\u5305\u542b\u975e\u6cd5\u5173\u952e\u8bcd");\r\n\/\/\u9a8c\u8bc1\u5931\u8d25\u4e3ausername\u5b57\u6bb5\u6dfb\u52a0\u9519\u8bef\u7801\uff08\u53c2\u6570\u4e3a\u5f53\u524d\u5c4f\u853d\u5173\u952e\u8bcd\uff09\uff08\u9ed8\u8ba4\u6d88\u606f\u4e3a"\u60a8\u7684\u7528\u6237\u540d\u5305\u542b\u975e\u6cd5\u5173\u952e\u8bcd"\uff09<\/pre>\n\n\t\u5bc6\u7801\u4e0d\u5408\u6cd5\uff0c\u4f8b\u5982\u5bc6\u7801\u4e0d\u80fd\u4f4e\u4e8e6\u4f4d\u6570\u7b49\u3002<\/span>\n<\/p>\n
\n\tValidationUtils\n<\/p>\n
\r\nValidationUtils.rejectIfEmpty(errors, "username", "username.not.empty");\r\n\u8868\u793a\u5982\u679c\u76ee\u6807\u5bf9\u8c61\u7684username\u5c5e\u6027\u6570\u636e\u4e3a\u7a7a\uff0c\u5219\u6dfb\u52a0\u5b83\u7684\u9519\u8bef\u7801\uff1b\r\n\u5185\u90e8\u901a\u8fc7\uff08value == null || !StringUtils.hasLength(value.toString())\uff09\u5b9e\u73b0\u5224\u65advalue\u662f\u5426\u4e3a\u7a7a\uff0c\u4ece\u800c\u7b80\u5316\u4ee3\u7801\u3002<\/pre>\n
\n\tspring\u914d\u7f6e\u6587\u4ef6chapter4-servlet.xml\n<\/p>\n
\r\n<bean id="userModelValidator" \r\nclass="com.xttblog.chapter4.web.controller.support.validator.UserModelValidator"\/> \r\n<bean name="\/validator" \r\nclass="com.xttblog.chapter4.web.controller.RegisterSimpleFormController"> \r\n <property name="formView" value="registerAndValidator"\/> \r\n <property name="successView" value="redirect:\/success"\/> \r\n <property name="validator" ref="userModelValidator"\/> \r\n<\/bean> <\/pre>\n
\n\t\u9519\u8bef\u7801\u914d\u7f6e\uff08messages.properties\uff09\uff0c\u9700\u8981\u6267\u884cNativeToAscii\n<\/p>\n
\r\nusername.not.empty=\u7528\u6237\u540d\u4e0d\u80fd\u4e3a\u7a7a \r\nusername.not.illegal=\u7528\u6237\u540d\u9519\u8bef\uff0c\u5fc5\u987b\u4ee5\u5b57\u6bcd\u5f00\u5934\uff0c\u53ea\u80fd\u51fa\u73b0\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff0c\u5e76\u4e14\u957f\u5ea6\u57285-20\u4e4b\u95f4 \r\nusername.forbidden=\u7528\u6237\u540d\u4e2d\u5305\u542b\u975e\u6cd5\u5173\u952e\u8bcd\u3010{0}\u3011 \r\npassword.not.illegal=\u5bc6\u7801\u957f\u5ea6\u5fc5\u987b\u57285-20\u4e4b\u95f4 <\/pre>\n\n\t\u89c6\u56fe\u9875\u9762\uff08\/WEB-INF\/jsp\/registerAndValidator.jsp\uff09\n<\/p>\n
\r\n<%@ page language="java" contentType="text\/html; charset=UTF-8" pageEncoding="UTF-8"%> \r\n<%@taglib prefix="form" uri="http:\/\/www.springframework.org\/tags\/form" %> \r\n<form:form commandName="user"> \r\n<form:errors path="*" cssStyle="color:red"><\/form:errors><br\/> \r\nusername:<form:input path="username"\/> \r\n<form:errors path="username" cssStyle="color:red"><\/form:errors> \r\n<br\/> \r\npassword:<form:password path="password"\/> \r\n<form:errors path="password" cssStyle="color:red"><\/form:errors> \r\n<br\/> \r\n<input type="submit" value="\u6ce8\u518c"\/> \r\n<\/form:form> <\/pre>\n
\n\tform:errors path="username"\uff1a\u8868\u793a\u53ea\u663e\u793ausername\u5b57\u6bb5\u7684\u9519\u8bef\u4fe1\u606f\uff1b\n<\/p>\n
\n\t\u8f93\u5165\u5730\u5740\uff1ahttp:\/\/localhost:9080\/springmvc-chapter4\/validator\u8fdb\u884c\u6d4b\u8bd5\u3002\n<\/p>\n
\n\t\u5f53\u6211\u4eec\u8f93\u5165\u9519\u8bef\u7684\u6570\u636e\u540e\uff0c\u4f1a\u62a5\u9519\uff08form:errors path="*"\u663e\u793a\u6240\u6709\u9519\u8bef\u4fe1\u606f\uff0c\u800cform:errors path="username"\u53ea\u663e\u793a\u8be5\u5b57\u6bb5\u76f8\u5173\u7684\uff09\u3002\n<\/p>\n
\n\t\u5982MultiActionController\u63a7\u5236\u5668\u76f8\u5173\u65b9\u6cd5\u6ca1\u6709\u63d0\u4f9b\u7ed9\u6211\u4eecerrors\u5bf9\u8c61\uff08Errors\uff09\uff0c\u6211\u4eec\u5e94\u8be5\u600e\u4e48\u8fdb\u884c\u9519\u8bef\u5904\u7406\u5462\uff1f
\n\t\u6b64\u5904\u7ed9\u5927\u5bb6\u4e00\u4e2a\u601d\u8def\uff0cerrors\u672c\u8d28\u5c31\u662f\u4e00\u4e2aErrors\u63a5\u53e3\u5b9e\u73b0\uff0c\u800c\u4e14\u5728\u9875\u9762\u8981\u8bfb\u53d6\u76f8\u5173\u7684\u9519\u8bef\u5bf9\u8c61\uff0c\u8be5\u9519\u8bef\u5bf9\u8c61\u5e94\u8be5\u5b58\u653e\u5728\u6a21\u578b\u5bf9\u8c61\u91cc\u8fb9\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u81ea\u5df1\u521b\u5efa\u4e2aerrors\u5bf9\u8c61\u5e76\u5c06\u5176\u6dfb\u52a0\u5230\u6a21\u578b\u5bf9\u8c61\u4e2d\u5373\u53ef\u3002\n<\/p>\n\r\nBindException errors = new BindException(user, getCommandName(user)); \r\n\/\/\u5982\u679c\u7528\u6237\u540d\u4e3a\u7a7a \r\nif(!StringUtils.hasLength(user.getUsername())) { \r\n errors.rejectValue("username", "username.not.empty"); \r\n} \r\nif(errors.hasErrors()) { \r\n return new ModelAndView(getCreateView()).addAllObjects(errors.getModel()); \r\n} <\/pre>\n- \n
- \n\t\tnew BindException(user, getCommandName(user))\uff1a\u4f7f\u7528\u5f53\u524d\u7684\u547d\u4ee4\u5bf9\u8c61\uff0c\u548c\u547d\u4ee4\u5bf9\u8c61\u7684\u540d\u5b57\u521b\u5efa\u4e86\u4e00\u4e2aBindException\u4f5c\u4e3aerrors\uff1b\n\t<\/li>\n
- \n\t\tStringUtils.hasLength(user.getUsername())\uff1a\u5982\u679c\u7528\u6237\u540d\u4e3a\u7a7a\u5c31\u662f\u7528errors.rejectValue("username", "username.not.empty");\u6ce8\u5165\u9519\u8bef\u7801\uff1b\n\t<\/li>\n
- \n\t\terrors.hasErrors()\uff1a\u8868\u793a\u5982\u679c\u6709\u9519\u8bef\u5c31\u8fd4\u56de\u5230\u65b0\u589e\u9875\u9762\u5e76\u663e\u793a\u9519\u8bef\u6d88\u606f\uff1b\n\t<\/li>\n
- \n\t\tModelAndView(getCreateView()).addAllObjects(errors.getModel())\uff1a\u6b64\u5904\u4e00\u5b9a\u628aerrors\u5bf9\u8c61\u7684\u6a21\u578b\u6570\u636e\u653e\u5728\u5f53\u524d\u7684ModelAndView\u4e2d\uff0c\u4f5c\u4e3a\u5f53\u524d\u8bf7\u6c42\u7684\u6a21\u578b\u6570\u636e\u8fd4\u56de\u3002\n\t<\/li>\n<\/ul>\n
\n\t\u5728\u6d4f\u89c8\u5668\u5730\u5740\u680f\u8f93\u5165\uff1ahttp:\/\/localhost:9080\/springmvc-chapter4\/userAndValidator\/create \u5230\u65b0\u589e\u9875\u9762\n<\/p>\n
\n\t\u7528\u6237\u540d\u4ec0\u4e48\u90fd\u4e0d\u8f93\u5165\uff0c\u63d0\u4ea4\u540e\u53c8\u8fd4\u56de\u5230\u65b0\u589e\u9875\u9762 \u800c\u4e14\u663e\u793a\u4e86\u9519\u8bef\u6d88\u606f\u8bf4\u660e\u6211\u4eec\u7684\u60f3\u6cd5\u662f\u6b63\u786e\u7684\u3002\u672c\u6587\u793a\u4f8b\u6e90\u7801\u4e0b\u8f7d\u94fe\u63a5\uff1ahttp:\/\/pan.baidu.com\/s\/1bpvohZp<\/a> \u5bc6\u7801\uff1awgde<\/p>\n
![\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/](\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\")
<\/p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>
\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » SpringMVC\u7f16\u7a0b\u5f0f\u9a8c\u8bc1\u5668Validator<\/a><\/p>","protected":false},"excerpt":{"rendered":"
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