Failed to convert from type [java.lang.String] to type [java.util.Date] for value ‘1‘； nested except

日志中的错误主要是由于类型转换失败造成的。在这种情况下，系统试图将一个字符串 “1” 转换为 java.util.Date 类型，但失败了，提示这种转换不是直接可行的。错误信息是由 Spring 框架在处理 HTTP 请求并尝试将请求参数绑定到一个 Java 对象时生成的。在一个名为 ywNsrcjxxReqVO 的对象的 ldrq 字段上。这个字段期望的是一个 Date 类型，但实际传入的是一个

明金同学

959人浏览 · 2024-06-06 21:30:00

明金同学 · 2024-06-06 21:30:00 发布

问题描述

日志中的错误主要是由于类型转换失败造成的。在这种情况下，系统试图将一个字符串 “1” 转换为 java.util.Date 类型，但失败了，提示这种转换不是直接可行的。错误信息是由 Spring 框架在处理 HTTP 请求并尝试将请求参数绑定到一个 Java 对象时生成的。

在一个名为 ywNsrcjxxReqVO 的对象的 ldrq 字段上。这个字段期望的是一个 Date 类型，但实际传入的是一个不符合日期格式的字符串。

报错信息

Field error in object 'ywNsrcjxxReqVO' on field 'ldrq': rejected value [1]; codes [typeMismatch.ywNsrcjxxReqVO.ldrq,typeMismatch.ldrq,typeMismatch.java.util.Date,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [ywNsrcjxxReqVO.ldrq,ldrq]; arguments []; default message [ldrq]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'java.util.Date' for property 'ldrq'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [java.util.Date] for value '1'; nested exception is java.lang.IllegalArgumentException

解决方法

确保前端发送的数据类型正确
检查前端代码，确保发送的日期数据是正确的字符串格式。例如，如果使用的是 HTML 表单或 JavaScript 发送数据，确保日期字段的值是按照后端所需的格式（如 yyyy-MM-dd）构造的。
在后端使用 @DateTimeFormat 来指定日期格式
在 Spring MVC 中，使用 @DateTimeFormat 注解来帮助 Spring 理解日期字段的格式。确保在 DTO（数据传输对象）中，对应的日期属性上使用了此注解。例如：

import org.springframework.format.annotation.DateTimeFormat;

public class YwNsrcjxxReqVO {
    @DateTimeFormat(pattern = "yyyy-MM-dd")
    private Date ldrq;

    // getter 和 setter
    public Date getLdrq() {
        return ldrq;
    }

    public void setLdrq(Date ldrq) {
        this.ldrq = ldrq;
    }
}

当 Spring MVC 尝试将请求中的日期字符串绑定到 ldrq 属性时，会使用指定的格式进行解析。

配置全局日期转换器
如果应用经常需要处理日期，考虑在配置类中添加一个全局的日期转换器。通过实现 WebMvcConfigurer 并重写 addFormatters 方法来实现：

import org.springframework.context.annotation.Configuration;
import org.springframework.format.FormatterRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.format.datetime.standard.DateTimeFormatterRegistrar;

@Configuration
public class WebConfig implements WebMvcConfigurer {
    @Override
    public void addFormatters(FormatterRegistry registry) {
        DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
        registrar.setDateFormatter(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
        registrar.registerFormatters(registry);
    }
}

这将为整个 Spring MVC 应用配置默认的日期格式。

处理异常和提供反馈
确保后端逻辑能够妥善处理类型转换错误。使用异常处理器（如 @ControllerAdvice）来捕获 BindException 或 ConversionFailedException，并给前端提供明确的错误信息。

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.ServletRequestBindingException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

@ControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler(BindException.class)
    @ResponseBody
    public String handleBindException(BindException e) {
        return "日期格式错误，请使用 yyyy-MM-dd 格式";
    }
}

日志记录
在处理日期绑定时，增加日志记录帮助追踪数据流和识别问题。在关键的数据处理点，比如在控制器方法开始处，记录接收到的原始数据。

错误日志

2024-06-06 16:47:13.091 ERROR 15412 --- [nio-8061-exec-1] c.n.n.i.configure.error.GlobalControllerExceptionHandler     28 :  运行过程中发生异常：

org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errors
Field error in object 'ywNsrcjxxReqVO' on field 'ldrq': rejected value [1]; codes [typeMismatch.ywNsrcjxxReqVO.ldrq,typeMismatch.ldrq,typeMismatch.java.util.Date,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [ywNsrcjxxReqVO.ldrq,ldrq]; arguments []; default message [ldrq]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'java.util.Date' for property 'ldrq'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [java.util.Date] for value '1'; nested exception is java.lang.IllegalArgumentException]
	at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:175) ~[spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:122) ~[spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:179) ~[spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:146) ~[spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067) ~[spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.3.15.jar:5.3.15]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) [spring-webmvc-5.3.15.jar:5.3.15]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) [tomcat-embed-core-9.0.56.jar:4.0.FR]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.3.15.jar:5.3.15]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) [tomcat-embed-core-9.0.56.jar:4.0.FR]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:111) [spring-web-5.3.15.jar:5.3.15]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:219) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:213) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at com.noask.nsrhx.infrastructure.security.filter.JwtAuthenticationTokenFilter.doFilterInternal(JwtAuthenticationTokenFilter.java:41) [classes/:na]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183) [spring-security-web-5.6.1.jar:5.6.1]
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) [spring-web-5.3.15.jar:5.3.15]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.15.jar:5.3.15]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.15.jar:5.3.15]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.3.15.jar:5.3.15]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.15.jar:5.3.15]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.56.jar:9.0.56]
	at java.lang.Thread.run(Thread.java:750) [na:1.8.0_412]

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