查看机器上安装的jdk能支持多大内存

命令：java -Xmx1024m -version

C:Usersmaite>java -Xmx1024m -version
java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)

支持不了就会报错

C:Usersmaite>java -Xmx1024m -version
java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)