struts2从2.2.3升级到2.3.15.1步骤

1. 删除如下jar包 asm-3.1.jar asm-commons-3.1.jar commons-beanutils-1.7.0.jar commons-fileupload-1.2.2.jar commons-io-1.3.2.jar commons-lang-2.3.jar commons-logging-1.1.jar ognl-3.0.1.jar struts2-convention

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