报错信息为：
Unable to read repository at https://dl.bintray.com/subclipse/releases/subclipse/4.3.x/content.xml. Remote host closed connection during handshake
解决办法：
卸载干净jdk，下载了jdk，重新安装，配置了环境变量，cmd输入java -version 显示版本号，表示安装成功。
然后启动eclipse不成功，修改eclipse配置文件
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20150204-1316
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
512M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
512m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-vm
C:/Program Files/Java/jdk1.8.0_171/bin/javaw.exe
-vmargs
-Dosgi.requiredJavaVersion=1.8
-Xms80m
-Xmx1024m
-vm
C:/Program Files/Java/jdk1.8.0_171/bin/javaw.exe
这两行是我新增的内容
然后就启动成功了，可以顺利安装好svn
