Spring 全家桶之 Spring Web MVC（五）- Data Binder（下）

@DateTimeFormat(pattern = "yyyy-MM-dd")
private Date birth;
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org.springframework.context.support.ConversionServiceFactoryBean
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org.springframework.format.support.FormattingConversionServiceFactoryBean
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<!--使用自定义的ConverterService-->
<bean id="conversionServiceFactory" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
    <!--中间内容不变-->
</bean>
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<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>2.0.1.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>6.0.16.Final</version>
</dependency>
<dependency>
    <groupId>javax.el</groupId>
    <artifactId>javax.el-api</artifactId>
    <version>3.0.0</version>
</dependency>
<dependency>
    <groupId>org.glassfish.web</groupId>
    <artifactId>javax.el</artifactId>
    <version>2.2.6</version>
</dependency>
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@NotEmpty
@Length(min = 5,max = 8)
private String lastName;
@Email
private String email;
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@RequestMapping(value = "/emp", method = RequestMethod.POST)
public String addEmp(@Valid Employee employee, BindingResult result){
    System.out.println("要添加的员工信息:" + employee);
    boolean hasErrors = result.hasErrors();
    if (hasErrors){
        System.out.println("属性校验错误");
        return "add";
    }
    employeeDao.save(employee);
    // 返回列表页面
    return "redirect:/emps";
}
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LastName:<form:input path="lastName"/><form:errors path="lastName" /><br/>
Email:<form:input path="email"/><form:errors path="email" /><br/>
<!--其他内容不变-->
birth:<form:input path="birth" /><form:errors path="birth" /><br>
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@RequestMapping(value = "/emp", method = RequestMethod.POST)
public String addEmp(@Valid Employee employee, BindingResult result, Model model){
    Map<String, Object> errorMap = new HashMap<>();
    System.out.println("要添加的员工信息:" + employee);
    boolean hasErrors = result.hasErrors();
    if (hasErrors){
        System.out.println("属性校验错误");
        // 获取详细报错信息
        List<FieldError> fieldErrors = result.getFieldErrors();
        for (FieldError fieldError : fieldErrors) {
            System.out.println("出错字段为：" + fieldError.getField() + "，报错信息为：" + fieldError.getDefaultMessage());
            // 获取错误代码，用来作为国际化配置的Key
            String[] codes = fieldError.getCodes();
            for (String code : codes) {
                System.out.println(code);
            }
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        }
        model.addAttribute("errorMap", errorMap);
        return "add";
    }
    System.out.println(result);
    employeeDao.save(employee);
    // 返回列表页面
    return "redirect:/emps";
}
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Email.email=email wrong, retry
NotEmpty=can't be empty
Length.java.lang.String=length incorrect
Past=must be a past time
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Email.email=\u90AE\u7BB1\u4E0D\u5BF9
NotEmpty=\u4E0D\u80FD\u4E3A\u7A7A
Length.java.lang.String= \u957F\u5EA6\u4E0D\u5BF9
Past=\u65F6\u95F4\u5FC5\u987B\u662F\u8FC7\u53BB\u7684
typeMismatch.birth=\u751F\u65E5\u7684\u683C\u5F0F\u4E0D\u6B63\u786E
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<!--国际化配置-->
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
    <property name="basename" value="error"></property>
</bean>
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Email.email=\u90AE\u7BB1\u4E0D\u5BF9 - {0} 
NotEmpty=\u4E0D\u80FD\u4E3A\u7A7A - {0} 
Length.java.lang.String= \u957F\u5EA6\u4E0D\u5BF9 - {0} {1} {2}
Past=\u65F6\u95F4\u5FC5\u987B\u662F\u8FC7\u53BB\u7684 - {0}
typeMismatch.birth=\u751F\u65E5\u7684\u683C\u5F0F\u4E0D\u6B63\u786E - {0}
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