java.lang.NoSuchMethodError: org.springframework.core.GenericTypeResolver.resolveTypeArguments(Ljava/lang/Class;Ljava/lang/Class;)[Ljava/lang/Class;
    org.springframework.core.convert.support.GenericConversionService.getRequiredTypeInfo(GenericConversionService.java:260)
    org.springframework.core.convert.support.GenericConversionService.addConverter(GenericConversionService.java:83)
    org.springframework.core.convert.support.DefaultConversionService.addScalarConverters(DefaultConversionService.java:63)
    org.springframework.core.convert.support.DefaultConversionService.addDefaultConverters(DefaultConversionService.java:54)
    org.springframework.core.convert.support.DefaultConversionService.<init>(DefaultConversionService.java:43)
    org.springframework.core.env.AbstractPropertyResolver.<init>(AbstractPropertyResolver.java:41)
    org.springframework.core.env.PropertySourcesPropertyResolver.<init>(PropertySourcesPropertyResolver.java:41)
    org.springframework.core.env.AbstractEnvironment.<init>(AbstractEnvironment.java:98)
    org.springframework.core.env.StandardEnvironment.<init>(StandardEnvironment.java:54)
    org.springframework.web.context.support.StandardServletEnvironment.<init>(StandardServletEnvironment.java:44)
    org.springframework.web.servlet.HttpServletBean.createEnvironment(HttpServletBean.java:213)
    org.springframework.web.servlet.HttpServletBean.getEnvironment(HttpServletBean.java:203)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:126)
    javax.servlet.GenericServlet.init(GenericServlet.java:212)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    java.lang.Thread.run(Unknown Source)

spring ： 3.1.2.RELEASE

使用springmvc搭建web服务时出错了，原因是jar包冲突，最后经过分析是sping.jar(2.5.6)与spring-core.jar(3.1.2.RELEASE)冲突了，果断删掉spring.jar

导致这次错误的原因是网上的例子或者其他项目中都加入了spring.jar，以至于误导了我

lib/

aopalliance-1.0.jar
commons-beanutils-1.8.3.jar
commons-codec-1.4.jar
commons-collections-3.2.1.jar
commons-dbcp-1.4.jar
commons-discovery-0.2.jar
commons-fileupload-1.2.2.jar
commons-httpclient-3.1.jar
commons-io-2.0.1.jar
commons-lang-2.5.jar
commons-lang3-3.1.jar
commons-logging-1.1.1.jar
commons-pool-1.6.jar
druid-1.0.5.jar
ezmorph-1.0.6.jar
fontbox-1.8.7.jar
ibatis-sqlmap-2.3.4.726.jar
itextpdf-5.5.3.jar
jackson-core-asl-1.9.6.jar
jackson-mapper-asl-1.9.6.jar
jempbox-1.8.7.jar
json-lib-2.3-jdk15.jar
jstl-1.2.jar
log4j-1.2.16.jar
mysql-connector-java-5.1.18.jar
pdfbox-1.8.7.jar
servlet-api-2.5.jar
spring-aop-3.1.2.RELEASE.jar
spring-asm-3.1.2.RELEASE.jar
spring-beans-3.1.2.RELEASE.jar
spring-context-3.1.2.RELEASE.jar
spring-context-support-3.1.2.RELEASE.jar
spring-core-3.1.2.RELEASE.jar
spring-expression-3.1.2.RELEASE.jar
spring-jdbc-3.1.2.RELEASE.jar
spring-orm-3.1.2.RELEASE.jar
spring-oxm-3.1.2.RELEASE.jar
spring-tx-3.1.2.RELEASE.jar
spring-web-3.1.2.RELEASE.jar
spring-webmvc-3.1.2.RELEASE.jar
standard-1.1.2.jar
urlrewritefilter-3.1.0.jar