FAQ（69）：java.lang.IllegalStateException: Cannot convert value of type ‘java.lang.String‘ to required

FAQ（69）：java.lang.IllegalStateException: Cannot convert value of type ‘java.lang.String‘ to required

1、springmvc的配置文件，配置FastJson的消息转换器--FastJasonHttpMessageConverter

2、log：

java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'com.alibaba.fastjson.serializer.SerializerFeature' for property 'features[0]': no matching editors or conversion strategy found org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:306) org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:143) org.springframework.beans.TypeConverterDelegate.convertToTypedArray(TypeConverterDelegate.java:479) org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:216) org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:588) org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty(AbstractNestablePropertyAccessor.java:615) org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:216) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1577) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1536) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:299) org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122) org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:382) org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:157) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:171) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502) org.apache.coyote. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684) org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2527) org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2516) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source)

解决：

application/json;charset=UTF-8 text/html;charset=UTF-8 application/json WriteDateUseDateFormat

上面已经作了以下修改：

原：

WriteDateUserDateFormat

改为：

WriteDateUseDateFormat

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