在 JdbcOperationsSessionRepository 中找不到能够从 java.lang.Object 类型转换为 byte[] 类型的转换器

【问题标题】：No converter found capable of converting from type java.lang.Object to type byte[] in JdbcOperationsSessionRepository在 JdbcOperationsSessionRepository 中找不到能够从 java.lang.Object 类型转换为 byte[] 类型的转换器
【发布时间】：2016-06-30 14:21:52
【问题描述】：

我正在尝试通过基于 spring xml 的配置将 spring 会话存储在 oracle Db 中。

我已经手动创建了 schema-oracle.sql 中提供的表（SPRING_SESSION 和 SPRING_SESSION_ATTRIBUTES），并按照 spring 文档指南中的建议在 web.xml 和 session.xml 中提供了条目： http://docs.spring.io/spring-session/docs/current/reference/html5/guides/httpsession-jdbc-xml.html

WEb-INF/lib/ 中的罐子：

spring-web-4.0.2.RELEASE.jar
spring-session-1.2.0.RELEASE.jar
spring-session-jdbc-1.2.0.RELEASE.jar
spring-jdbc-4.0.2.RELEASE.jar

错误跟踪：

JBWEB000236: Servlet.service() for servlet jsp threw exception: org.springframework.core.convert.ConverterNotFoundException: **No converter found capable of converting from type java.lang.Object to type byte[]**
    at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:291) [spring-core-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:177) [spring-core-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    **at org.springframework.session.jdbc.JdbcOperationsSessionRepository.serialize(JdbcOperationsSessionRepository.java:524) [spring-session-1.2.0.RELEASE.jar:]**
    at org.springframework.session.jdbc.JdbcOperationsSessionRepository.access$200(JdbcOperationsSessionRepository.java:130) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.jdbc.JdbcOperationsSessionRepository$1$2.setValues(JdbcOperationsSessionRepository.java:298) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.jdbc.core.JdbcTemplate$4.doInPreparedStatement(JdbcTemplate.java:997) [spring-jdbc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate$4.doInPreparedStatement(JdbcTemplate.java:987) [spring-jdbc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:642) [spring-jdbc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:671) [spring-jdbc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.batchUpdate(JdbcTemplate.java:987) [spring-jdbc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.session.jdbc.JdbcOperationsSessionRepository$1.doInTransactionWithoutResult(JdbcOperationsSessionRepository.java:290) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:34) [spring-tx-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133) [spring-tx-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.session.jdbc.JdbcOperationsSessionRepository.save(JdbcOperationsSessionRepository.java:273) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.jdbc.JdbcOperationsSessionRepository.save(JdbcOperationsSessionRepository.java:130) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.commitSession(SessionRepositoryFilter.java:244) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.access$100(SessionRepositoryFilter.java:214) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryResponseWrapper.onResponseCommitted(SessionRepositoryFilter.java:202) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.OnCommittedResponseWrapper.doOnResponseCommitted(OnCommittedResponseWrapper.java:226) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.OnCommittedResponseWrapper.checkContentLength(OnCommittedResponseWrapper.java:216) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.OnCommittedResponseWrapper.access$200(OnCommittedResponseWrapper.java:37) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.OnCommittedResponseWrapper$SaveContextPrintWriter.write(OnCommittedResponseWrapper.java:281) [spring-session-1.2.0.RELEASE.jar:]
    at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:260) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at java.io.PrintWriter.write(PrintWriter.java:426) [rt.jar:1.7.0_45]
    at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:117) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:309) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at java.io.Writer.write(Writer.java:157) [rt.jar:1.7.0_45]
    at org.apache.jsp.WEB_002dINF.jsp.common.frameworkResource_jsp._jspService(frameworkResource_jsp.java:806)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:69) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:365) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:242) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:832) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:718) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:655) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_45]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_45]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_45]
    at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_45]
    at net.bull.javamelody.JspWrapper.invoke(JspWrapper.java:150) [javamelody-core-1.58.0.jar:1.58.0]
    at net.bull.javamelody.JdbcWrapper$DelegatingInvocationHandler.invoke(JdbcWrapper.java:286) [javamelody-core-1.58.0.jar:1.58.0]
    at com.sun.proxy.$Proxy222.include(Unknown Source)
    at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:940) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.jsp.WEB_002dINF.jsp.loginpage_jsp._jspService(loginpage_jsp.java:128)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:69) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:365) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:242) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:832) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:620) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:553) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:482) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_45]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_45]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_45]
    at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_45]
    at net.bull.javamelody.JspWrapper.invoke(JspWrapper.java:150) [javamelody-core-1.58.0.jar:1.58.0]
    at net.bull.javamelody.JdbcWrapper$DelegatingInvocationHandler.invoke(JdbcWrapper.java:286) [javamelody-core-1.58.0.jar:1.58.0]
    at com.sun.proxy.$Proxy222.forward(Unknown Source)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:209) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:267) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1225) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1012) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:162) [javamelody-core-1.58.0.jar:1.58.0]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:164) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:80) [spring-session-1.2.0.RELEASE.jar:]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]

【问题讨论】：

  • 您能分享一个重现此问题的示例吗？默认ConversionService 应该能够将Object 转换为字节数组。您是否有机会为ConversionService 使用自定义配置？

标签： spring oracle spring-security spring-session


【解决方案1】：

我通过实现自己的转换器来实现这一点，因为org.springframework.session.jdbc.config.annotation.web.http.JdbcHttpSessionConfiguration 中的转换器似乎没有正确加载（代码中有关于此的注释。）

我通过根据JdbcHttpSessionConfiguration 中的内容创建自己的ByteaConversionService 来保存数据。

首先在xml配置中创建带有属性的bean

<bean class="org.springframework.session.jdbc.config.annotation.web.http.JdbcHttpSessionConfiguration">
    <property name="springSessionConversionService">
        <bean class="com.mycompany.ByteaConversionService" />
    </property>
</bean>

然后在包com.mycompany中创建类

public class ByteaConversionService extends GenericConversionService {
    public ByteaConversionService() {
        addConverter(Object.class, byte[].class, new SerializingConverter());
        addConverter(byte[].class, Object.class, new DeserializingConverter());
    }
}

这对我有用。 （现在我正在为如何使多个会话工作而苦苦挣扎。）

【讨论】：

    猜你喜欢
    • 1970-01-01
    • 2021-11-19
    • 2018-02-15
    • 1970-01-01
    • 1970-01-01
    • 1970-01-01
    • 2020-11-19
    • 1970-01-01
    • 2020-10-14
    相关资源
    最近更新 更多
    热门标签
    Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode