java 装换java web失败

.project

<?xml version="1.0" encoding="UTF-8"?>

<projectDescription>

<name>sinopharm</name>

<comment></comment>

<projects>

</projects>

<buildSpec>

<buildCommand>

<name>org.eclipse.jdt.core.javabuilder</name>

<arguments>

</arguments>

</buildCommand>

<buildCommand>

<name>org.eclipse.wst.common.project.facet.core.builder</name>

<arguments>

</arguments>

</buildCommand>

<buildCommand>

<name>org.eclipse.wst.validation.validationbuilder</name>

<arguments>

</arguments>

</buildCommand>

</buildSpec>

<natures>

<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>

<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>

<nature>org.eclipse.wst.common.project.facet.core.nature</nature>

<nature>org.eclipse.jdt.core.javanature</nature>

<nature>org.eclipse.wst.jsdt.core.jsNature</nature>

</natures> 

</projectDescription>