[大数据]nacos适配达梦数据库

1、nacos源码
地址：https://github.com/alibaba/nacos/releases/tag/1.4.1

2、修改主pom.xml

引入dm包

3、修改console下的配置文件

spring.datasource.platform=dm

### Count of DB:
db.num=1

db.jdbcDriverName=dm.jdbc.driver.DmDriver
### Connect URL of DB:
db.url.0=jdbc:dm://ip:5236/NACOS_CONFIG?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
db.user.0=username
db.password.0=password

4、修改代码config下的ExternalDataSourceProperties.class

修改如下：

private String jdbcDriverName;

    public String getJdbcDriverName() {
        return jdbcDriverName;
    }

    public void setJdbcDriverName(String jdbcDriverName) {
        this.jdbcDriverName = jdbcDriverName;
    }

    /**
     * Build serveral HikariDataSource.
     *
     * @param environment {@link Environment}
     * @param callback    Callback function when constructing data source
     * @return List of {@link HikariDataSource}
     */
    List<HikariDataSource> build(Environment environment, Callback<HikariDataSource> callback) {
        List<HikariDataSource> dataSources = new ArrayList<>();
        Binder.get(environment).bind("db", Bindable.ofInstance(this));
        Preconditions.checkArgument(Objects.nonNull(num), "db.num is null");
        Preconditions.checkArgument(CollectionUtils.isNotEmpty(user), "db.user or db.user.[index] is null");
        Preconditions.checkArgument(CollectionUtils.isNotEmpty(password), "db.password or db.password.[index] is null");
        for (int index = 0; index < num; index++) {
            int currentSize = index + 1;
            Preconditions.checkArgument(url.size() >= currentSize, "db.url.%s is null", index);
            DataSourcePoolProperties poolProperties = DataSourcePoolProperties.build(environment);
            poolProperties.setDriverClassName(JDBC_DRIVER_NAME);
            poolProperties.setJdbcUrl(url.get(index).trim());
            poolProperties.setUsername(getOrDefault(user, index, user.get(0)).trim());
            poolProperties.setPassword(getOrDefault(password, index, password.get(0)).trim());
            HikariDataSource ds = poolProperties.getDataSource();
            ds.setConnectionTestQuery(TEST_QUERY);
            ds.setIdleTimeout(TimeUnit.MINUTES.toMillis(10L));
            ds.setConnectionTimeout(TimeUnit.SECONDS.toMillis(3L));
            System.out.println("#################################");
            System.out.println("jdbcDriverName=" + jdbcDriverName);
            if (StringUtils.isNotEmpty(jdbcDriverName)) {
                // 增加其他数据库驱动的支持
                ds.setDriverClassName(jdbcDriverName);
            } else {
                //默认使用mysql驱动
                ds.setDriverClassName(JDBC_DRIVER_NAME);
            }
            System.out.println("#################################");
            System.out.println("dataSources=" + dataSources);
            dataSources.add(ds);
            callback.accept(ds);
        }
        Preconditions.checkArgument(CollectionUtils.isNotEmpty(dataSources), "no datasource available");
        return dataSources;
    }

5、修改对应实现类ExternalDataSourceServiceImpl.class
将所有的sql语句加上模式名称，如下

6、生成部署文件
执行语句

mvn -Prelease-nacos -Dmaven.test.skip=true -Dpmd.skip=true -Dcheckstyle.skip=true clean install -U

7、目标文件位置

distribution/target/nacos-server-$version 下的 nacos 文件夹 就是最终的输出物

8、启动
启动 nacos，bin文件夹下
sh startup.sh -m standalone查看启动日志
tail -f 支持达梦改造后的Nacos/nacos/logs/start.out

9、登录
http://ip:8848/nacos/index.html