今天装了下mysql改了下环境变量。打开了eclipse后发现eclipse找不到jre了，于是我把环境变量改了回来然后发现eclipse没有提示找不到jre，让我选择个workspace，第一次我将其选择了原来的workspace中，提示错误
修改完环境变量后测试了环境变量是没有问题的 jdk版本是11
打开了log后提示如下
!SESSION 2019-09-09 20:03:26.681 -----------------------------------------------
eclipse.buildId=4.12.0.I20190605-1800
java.version=11.0.4
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=zh_CN
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product
This is a continuation of log file E:\java workspace\.metadata\.bak_0.log
Created Time: 2019-09-09 20:03:57.979
!ENTRY org.eclipse.jst.ws.ui 2 0 2019-09-09 20:03:57.979
!MESSAGE Could not resolve module: org.eclipse.jst.ws.ui [567]
Unresolved requirement: Require-Bundle: org.eclipse.wst.ws.explorer; bundle-version="[1.0.204,1.1.0)"
-> Bundle-SymbolicName: org.eclipse.wst.ws.explorer; bundle-version="1.0.950.v201903050508"; singleton:="true"
org.eclipse.wst.ws.explorer [876]
Unresolved requirement: Require-Bundle: org.eclipse.equinox.http.jetty; bundle-version="[1.0.0,4.0.0)"
-> Bundle-SymbolicName: org.eclipse.equinox.http.jetty; bundle-version="3.7.100.v20190516-1504"
org.eclipse.equinox.http.jetty [344]
Unresolved requirement: Import-Package: org.eclipse.jetty.server; version="[9.4.0,10.0.0)"
-> Export-Package: org.eclipse.jetty.server; bundle-symbolic-name="org.eclipse.jetty.server"; bundle-version="9.4.18.v20190429"; version="9.4.18"; uses:="javax.net.ssl,javax.security.auth,javax.servlet,javax.servlet.http,org.eclipse.jetty.http,org.eclipse.jetty.io,org.eclipse.jetty.io.ssl,org.eclipse.jetty.server.handler,org.eclipse.jetty.server.session,org.eclipse.jetty.util,org.eclipse.jetty.util.annotation,org.eclipse.jetty.util.component,org.eclipse.jetty.util.log,org.eclipse.jetty.util.resource,org.eclipse.jetty.util.ssl,org.eclipse.jetty.util.thread"
org.eclipse.jetty.server [424]
Unresolved requirement: Import-Package: javax.naming
Unresolved requirement: Import-Package: org.eclipse.jetty.http; version="[9.4.0,10.0.0)"
-> Export-Package: org.eclipse.jetty.http; bundle-symbolic-name="org.eclipse.jetty.http"; bundle-version="9.4.18.v20190429"; version="9.4.18"; uses:="javax.servlet,javax.servlet.http,org.eclipse.jetty.io,org.eclipse.jetty.util,org.eclipse.jetty.util.component,org.eclipse.jetty.util.log,org.eclipse.jetty.util.resource"
org.eclipse.jetty.http [421]
Unresolved requirement: Import-Package: org.eclipse.jetty.util; version="[9.4.18,10.0.0)"
-> Export-Package: org.eclipse.jetty.util; bundle-symbolic-name="org.eclipse.jetty.util"; bundle-version="9.4.18.v20190429"; version="9.4.18"; uses:="javax.servlet,javax.servlet.http,org.eclipse.jetty.util.annotation,org.eclipse.jetty.util.component,org.eclipse.jetty.util.log,org.eclipse.jetty.util.resource,org.eclipse.jetty.util.thread"
org.eclipse.jetty.util [426]
Unresolved requirement: Import-Package: javax.naming
Unresolved requirement: Import-Package: org.eclipse.jetty.io; version="[9.4.18,10.0.0)"
-> Export-Package: org.eclipse.jetty.io; bundle-symbolic-name="org.eclipse.jetty.io"; bundle-version="9.4.18.v20190429"; version="9.4.18"; uses:="javax.net.ssl,org.eclipse.jetty.util,org.eclipse.jetty.util.annotation,org.eclipse.jetty.util.component,org.eclipse.jetty.util.log,org.eclipse.jetty.util.thread"
org.eclipse.jetty.io [422]
Unresolved requirement: Import-Package: org.eclipse.jetty.util.annotation; version="[9.4.18,10.0.0)"
-> Export-Package: org.eclipse.jetty.util.annotation; bundle-symbolic-name="org.eclipse.jetty.util"; bundle-version="9.4.18.v20190429"; version="9.4.18"
Unresolved requirement: Import-Package: org.eclipse.jetty.util; version="[9.4.18,10.0.0)"
-> Export-Package: org.eclipse.jetty.util; bundle-symbolic-name="org.eclipse.jetty.util"; bundle-version="9.4.18.v20190429"; version="9.4.18"; uses:="javax.servlet,javax.servlet.http,org.eclipse.jetty.util.annotation,org.eclipse.jetty.util.component,org.eclipse.jetty.util.log,org.eclipse.jetty.util.resource,org.eclipse.jetty.util.thread"
Unresolved requirement: Import-Package: org.eclipse.jetty.server.handler; version="[9.4.0,10.0.0)"
-> Export-Package: org.eclipse.jetty.server.handler; bundle-symbolic-name="org.eclipse.jetty.server"; bundle-version="9.4.18.v20190429"; version="9.4.18"; uses:="javax.servlet,javax.servlet.descriptor,javax.servlet.http,org.eclipse.jetty.http,org.eclipse.jetty.io,org.eclipse.jetty.server,org.eclipse.jetty.util,org.eclipse.jetty.util.annotation,org.eclipse.jetty.util.component,org.eclipse.jetty.util.log,org.eclipse.jetty.util.resource"
我之前使用eclipse 是se版本 前几天学习web部分 去下载了ee版本 当时选择workspace时没有出现此问题，今天发现问题后我卸载了eclipse，重新从之前的解压包中解压eclipse再次尝试，还是有同样的问题：在选择workspace时报错。
