如果是用myeclipse的话,右键项目->properties->Myeclipse->project facets->web ,将web context-root中的值改为你现在这个项目名
你该了项目名后有没有改web名?
如果没改,两个项目就重名了.
you named wrong so eclipse tomcat find no name mapped this
then another project load wrong !
so you must named the first one well!