External Projects imported by ECLIPSE cannot be identified as web projects and cannot be deployed under tomcat.

1. Go to the project directory, find the. project file, and open it.

2. Find <natures>... </natures>Code, Add the following TAG content and save:

 <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  > 

3. delete the files under. Setting and copy the following files from the. Setting file of other eclipse web projects (if not, create one using eclipse ).

 
. Jsdtscopeorg. eclipse. JST. common. project. facet. core. prefsorg. eclipse. WST. common. componentorg. eclipse. WST. common. project. facet. core. xmlorg. eclipse. WST. jsdt. UI. supertype. containerorg. eclipse. WST. jsdt. UI. supertype. name
 

4. Modify the project name in org. Eclipse. WST. Common. component.

 <?  XML version = "1.0" encoding = "UTF-8"  ?>  <  Project-Modules  ID  = "Modulecoreid" Project-version  = "1.5.0"  >      <  WB-Module  Deploy-name  = "Springweb"  >          <  WB-Resource  Deploy-Path  = "/"  Source-Path  = "/Webroot"  Tag  = "Defaultrootsource" />          <  WB-Resource  Deploy-Path  = "/WEB-INF/classes"  Source-Path  = "/Src"  />          <  Property  Name  = "Context-root"  Value  = "Springweb"  />          < Property  Name  = "Java-output-path"  Value  = "/Springweb1/build/classes"  />      </  WB-Module  >  </  Project-Modules  > 

Change the place where the preceding deploy-name value is the same to your project name, and change source-path to/webroot (If your project directory is webcontent, you don't need to change it)

 

Then the. jsdtscope file:

 <? XML version = "1.0" encoding = "UTF-8"  ?>  <  Classpath  >      <  Classpathentry  Kind  = "Src"  Path  = "Webroot"  />      <  Classpathentry  Kind  = "Con" Path  = "Org. Eclipse. WST. jsdt. Launching. jre_container"  />      <  Classpathentry  Kind  = "Con"  Path  = "Org. Eclipse. WST. jsdt. Launching. webproject"  >          <  Attributes  >              <  Attribute  Name = "Hide"  Value  = "True"  />          </  Attributes  >      </  Classpathentry  >      <  Classpathentry  Kind  = "Con"  Path  = "Org. Eclipse. WST. jsdt. Launching. basebrowserlibrary" />      <  Classpathentry  Kind  = "Output"  Path  = ""  />  </  Classpath  > 

Change the path in <classpathentry kind = "src" Path = "webroot"/> to/webroot (If your project directory is webcontent, you don't need to change it)

5. Right-click the Eclipse project and refresh the project. You will find that the project has become a web project, and then add it to Tomcat. Tomcat can identify our project.