java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit(index_jsp.java)
2012-03-20 09:35
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今天在做项目的时候莫名奇妙的提示如下错误:
java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit(index_jsp.java:23)。在网上找了一些资料都说是因为jar包冲突,可是百思不得其解啊,自己也没手工去添加jar包,怎么会多出来这些个包呢?经过手工测试,找到tomcat安装目录下自己项目的所在位置,打开了web-inf目录下的lib文件夹,发现里面还真有什么javax.servler.jar和javax.servler.jsp.jar,jsp-api.jar包,不管三七二十一,就删除了他们。你别说这招还真管用,系统回复正常了,但是我就纳闷他们是什么时候进来的?之前项目运行还正常啊,不知道什么时候添加进去的包。。
java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit(index_jsp.java:23)。在网上找了一些资料都说是因为jar包冲突,可是百思不得其解啊,自己也没手工去添加jar包,怎么会多出来这些个包呢?经过手工测试,找到tomcat安装目录下自己项目的所在位置,打开了web-inf目录下的lib文件夹,发现里面还真有什么javax.servler.jar和javax.servler.jsp.jar,jsp-api.jar包,不管三七二十一,就删除了他们。你别说这招还真管用,系统回复正常了,但是我就纳闷他们是什么时候进来的?之前项目运行还正常啊,不知道什么时候添加进去的包。。
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