openGauss JDBC源码编译过程

JDBC驱动查询范围元数据列名为小写，本文修改驱动适配为返回大写的元数据列。

1.编译准备

java环境

$ java -version
java version "1.8.0"
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

maven环境

$ mvn -version
Apache Maven 3.2.3 (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-12T04:58:10+08:00)
Maven home: /opt/apache-maven-3.2.3
Java version: 1.8.0, vendor: Oracle Corporation
Java home: /opt/jdk8/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-957.el7.x86_64", arch: "amd64", family: "unix"

2.下载源码

https://gitee.com/opengauss/openGauss-connector-jdbc/repository/blazearchive/v3.1.0.zip

3.修改源码

$ unzip openGauss-connector-jdbc-v3.1.0.zip

$ cd openGauss-connector-jdbc-v3.1.0/

修改第101行

$ vi pgjdbc/src/main/java/org/postgresql/core/Field.java
return columnLabel;
修改为
return columnLabel.toUpperCase();

4.编译

$ mvn clean package -DskipTests

编译完的jar包位置：pgjdbc/target/opengauss-jdbc-x.y.z.jar

已经编译完的jar包下载链接：openGauss-jdbc-upper.jar