加载本机库/缺少方法的问题如何:libttJdbc.so，libtten.so

Question

java.sql.SQLException: Problems with loading native library/missing methods: /home/timesten/TimesTen/tt1122/lib/libttJdbc.so: libtten.so: cannot open shared object file: No such file or directory
    at com.timesten.jdbc.JdbcOdbcConnection.connect(JdbcOdbcConnection.java:1794)
    at com.timesten.jdbc.TimesTenDriver.connect(TimesTenDriver.java:305)
    at com.timesten.jdbc.TimesTenDriver.connect(TimesTenDriver.java:161)
    at java.sql.DriverManager.getConnection(DriverManager.java:620)
    at java.sql.DriverManager.getConnection(DriverManager.java:222)
    at Test.main(Test.java:15)

谢谢

Answer 1

代码示例：

try{        
     String driverName =  "com.timesten.jdbc.TimesTenClientDriver"; // "sun.jdbc.odbc.JdbcOdbcDriver"
      String Url = "jdbc:timesten:client:dsn=timestendb_1122"; //"jdbc:odbc:timestendb_1122";   
       if(args.length >= 2){
                 driverName = args[0]; 
                 Url = args[1];
        }           
        System.out.println("driverName=" + driverName);
        System.out.println("Url=" + Url);
        System.out.println("classPath=" + System.getProperty("java.library.path"));     
            Class.forName(driverName).newInstance();
              // Open a connection to TimesTen
            Connection conn = DriverManager.getConnection(Url);        
            if(conn != null){
                System.out.println("okay");
            }
            else{
                 System.out.println("fail");
            }
                conn.close();
} catch (SQLException e) {
        e.printStackTrace();
}

ODBC .ini 配置：

[ODBC Data Sources]
timestendb_11221=TimesTen 11.2.2 Driver
[timestendb_1122]
TTC_SERVER=(Host || IP)
UID=Username
PWD=Password
TTC_SERVER_DSN=Cachedb01

错误：java.sql.SQLException：加载本机时出现问题 library/missing methods：/opt/TimesTen/tt1122/lib/libttJdbcCS.so： libttclient.so：无法打开共享对象文件：没有此类文件或 目录

解决：

检查是否存在：

$ldd /opt/TimesTen/tt1122/lib/libttJdbcCS.so

屏幕：

linux-vdso.so.1 =>  (0x00007fff039b4000)
    libttclient.so => not found
    libttco.so => not found
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f57d642e000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f57d6218000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f57d5e58000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f57d5c53000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f57d6876000)

检查目录时间客户端：$ ll /opt/TimesTen/tt1122/lib/libttclient.so

转到文件以添加共享库：sudo vi /etc/ld.so.conf.d/extension.conf -> 添加：/opt/TimesTen/tt1122/lib

再次检查

java -Djava.library.path=/opt/TimesTen/tt1122/lib -jar test1.jar 

代码打印：

driverName=com.timesten.jdbc.TimesTenClientDriver
Url=jdbc:timesten:client:dsn=timestendb_1122
classPath=/opt/TimesTen/tt1122/lib
java.sql.SQLException: [TimesTen][TimesTen 11.2.2.5.0 CLIENT]Cannot find the requested DSN (timestendb_1122) in ODBCINI, Unable to open /var/TimesTen/tt1122/sys.odbc.ini. Permission denied

解决：

1. export ODBCINI=/etc/odbc.ini（如果您使用了 ODBC 驱动程序）
2. export ODBCINI=/var/TimesTen/tt1122/sys.odbc.ini（如果使用时间十驱动程序）

可以为用户添加bash文件：

nano /home/nhatvd/.bashrc 
export ODBCINI=/etc/odbc.ini
$ ldd /opt/TimesTen/tt1122/lib/libttJdbcCS.so
    linux-vdso.so.1 =>  (0x00007fff429fe000)
    libttclient.so => /opt/TimesTen/tt1122/lib/libttclient.so (0x00007fd7977ee000)
    libttco.so => /opt/TimesTen/tt1122/lib/libttco.so (0x00007fd797520000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd797223000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fd79700d000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd796c4d000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd796a48000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fd796748000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd79652b000)
    libnsl.so.1 => /lib/x86_64-linux-gnu/libnsl.so.1 (0x00007fd796310000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fd797b12000)

结果：

$ java -Djava.library.path=/opt/TimesTen/tt1122/lib -jar test1.jar 

代码打印：

driverName=com.timesten.jdbc.TimesTenClientDriver
Url=jdbc:timesten:client:dsn=timestendb_1122
classPath=/opt/TimesTen/tt1122/lib

好

做。