访问swagger/Knife4j 接口文档报错：java.lang.NumberFormatException: For input string: ““

问题描述

报异常如下：java.lang.NumberFormatException: For input string: ""

虽然不影响使用，但是每次打开接口文档就会报错，就很烦。

java.lang.NumberFormatException: For input string: ""at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)at java.lang.Long.parseLong(Long.java:601)at java.lang.Long.valueOf(Long.java:803)at io.swagger.models.parameters.AbstractSerializableParameter.getExample(AbstractSerializableParameter.java:412)at sun.reflect.GeneratedMethodAccessor263.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:689)at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:755)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178)at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:119)at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:79)at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:18)at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:728)at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:755)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178)at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:728)at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:755)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178)at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:726)at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithoutTypeInfo(MapSerializer.java:681)at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:637)at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:33)at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:728)at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:755)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178)at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480)at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319)at com.fasterxml.jackson.databind.ObjectMapper._writeValueAndClose(ObjectMapper.java:4409)at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:3663)at springfox.documentation.spring.web.json.JsonSerializer.toJson(JsonSerializer.java:38)at springfox.documentation.swagger2.web.Swagger2ControllerWebMvc.getDocumentation(Swagger2ControllerWebMvc.java:106)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)at javax.servlet.http.HttpServlet.service(HttpServlet.java:497)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)at javax.servlet.http.HttpServlet.service(HttpServlet.java:584)at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:111)at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)at io.undertow.server.Connectors.executeRootHandler(Connectors.java:390)at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:836)at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019)at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558)at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1449)at java.lang.Thread.run(Thread.java:745)

引用的springfox-swagger2版本是2.10.5

解决过程

移除swagger-models依赖，重新引入一个1.6.0版本的后成功解决！

准确来说是swagger-models低版本当中的一个bug。

<dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.10.5</version><exclusions><exclusion><groupId>io.swagger</groupId><artifactId>swagger-models</artifactId></exclusion></exclusions>
</dependency>
<dependency><groupId>io.swagger</groupId><artifactId>swagger-models</artifactId><version>1.6.0</version>
</dependency>

访问swagger/Knife4j 接口文档报错：java.lang.NumberFormatException: For input string: ““相关推荐

关于Swagger报错java.lang.NumberFormatException: For input string: 的总结
关于Swagger报错java.lang.NumberFormatException: For input string: ""的总结 1 为什么会报错? 2 如何排错? 3 哪种 ...
swagger报错 java.lang.NumberFormatException: For input string: ““
项目中集成Swagger,每次刷新页面,都给我报一个java.lang.NumberFormatException: For input string: ""的错误,真的是犯强迫症 ...
线上flink任务重启报错(Hadoop问题)java.lang.NumberFormatException: For input string: “30s“
线上Flink任务重启时,提交任务失败,具体报错如下: 2021-12-31 18:09:19 java.lang.NumberFormatException: For input string: & ...
关于java.lang.NumberFormatException: For input string:${redis.maxIdle}的报错
项目通用文件配置目录 reids配置文件 <?xml version="1.0" encoding="UTF-8"?> <beans xmln ...
mybatis 报错：Cause: java.lang.NumberFormatException: For input string: ““
mybatis 报错:Cause: java.lang.NumberFormatException: For input string: "" 问题描述我使用的mybatis版本 ...
Mybatis报错: Error querying database. Cause: java.lang.NumberFormatException: For input string: “A“
报错信息:Error querying database. Cause: java.lang.NumberFormatException: For input string: "A" ...
mybatis 报错：Cause: java.lang.NumberFormatException: For input string
Cause: java.lang.NumberFormatException: For input string 异常提示异常来源异常解决异常提示 Error querying database ...
Struts2访问验证码异常解决OgnlValueStack:64 - ..java.lang.NumberFormatException: For input string: 1494056190
Struts2 整合验证码程序时出现异常 15:36:30,511 WARN OgnlValueStack:64 - Error setting value java.lang.NumberForma ...
报错解决:Cause: java.lang.NumberFormatException: For input string:
我的问题 mapper 判断类型出了错误错误正确

访问swagger/Knife4j 接口文档报错：java.lang.NumberFormatException: For input string: ““

目录

问题描述

解决过程

访问swagger/Knife4j 接口文档报错：java.lang.NumberFormatException: For input string: ““相关推荐

最新文章

热门文章