在国产芯片服务器上搭建java开发平台

硬件平台:国产 arm64 3399cpu服务器，操作系统，海之舟服务器操作系统。
操作系统刷入tf卡后启动，登陆，操作系统已预置了java开发包。
login as: zs
[email protected]’s password:
Linux bigdataA 4.4.167 #1 SMP Mon Sep 16 13:54:05 CST 2019 aarch64
Last login: Mon Sep 30 21:11:28 2019 from 192.168.1.6
操作系统已开发了部分范例，且带源码
进入范例目录
zs@bigdataA:~$ cd h-soft/java
zs@bigdataA:~/h-soft/java$ ls
hello.class jdbc1.java jdbc3.class MyXMLReader.class
hello.java jdbc2.class jdbc3.java MyXMLReader.java
jdbc1.class jdbc2.java jdbc4.java webconfig.xml
运行hello范例
zs@bigdataA:~/h-soft/java$ java hello
Hello World
运行jdbc1范例,范例访问大数据库提取记录。
zs@bigdataA:~/h-soft/java$ java jdbc1
SELECT * FROM t1 ORDER BY bid
bid:1
id:6
xm:ZhangSan
zh:zhangh
tjsj:2019-09-25 21:39:31.701731

bid:2
id:6
xm:ZhangSan
zh:zhangh
tjsj:2019-09-25 21:39:43.474549

bid:3
id:6
xm:ZhangSan
zh:zhangh
tjsj:2019-09-25 21:40:05.117095

bid:4
id:4
xm:Mark
zh:Rich
tjsj:2019-09-25 21:52:38.727645

zs@bigdataA:~/h-soft/java$
查看hello.java
zs@bigdataA:~/h-soft/java$ nano hello.java
public class hello{
public static void main(String[] args) {
System.out.println(“Hello World”);
}
}
查看 jdbc1.java
zs@bigdataA:~/h-soft/java$ nano jdbc1.java
import java.sql.*;
public class jdbc1{
public static void main(String args[])
{
String str=“SELECT * FROM t1 ORDER BY bid”;
try{
Class.forName(“org.postgresql.Driver”).newInstance();
String url=“jdbc:postgresql://coordinator1:30002/postgres”;
String user=“zs”;
String pwd=“1234”;
Connection conn=DriverManager.getConnection(url,user,pwd);
Statement st=conn.createStatement();
ResultSet rs =st.executeQuery(str);
System.out.println(str);
while (rs.next())
{
System.out.println(“bid:”+rs.getString(1));
System.out.println(“id:”+rs.getString(2));
System.out.println(“xm:”+rs.getString(3));
System.out.println(“zh:”+rs.getString(4));
// str=rs.getString(3);
System.out.println(“tjsj:”+rs.getString(6)+"\n");
}
rs.close();
st.close();
conn.close();
}
catch(Exception e) { System.out.println(e); }
}
}

编辑文件hello.java
zs@bigdataA:~/h-soft/java$ nano hello.java
public class hello{
public static void main(String[] args) {
System.out.println(“Hello World good”);
}
}
重新编译
zs@bigdataA:~/h-soft/java$ javac hello.java
运行
zs@bigdataA:~/h-soft/java$ java hello
Hello World good