nacos配置达梦数据库驱动源代码步骤

1.在父工程pom.xml添加依赖：

<dependency>
    <groupId>com.dameng</groupId>
    <artifactId>DmJdbcDriver18</artifactId>
    <version>8.1.1.193</version>
</dependency>

2.在nacos-config模块pom.xml添加依赖：

<dependency>
    <groupId>com.dameng</groupId>
    <artifactId>DmJdbcDriver18</artifactId>
    <version>8.1.1.193</version>
</dependency>

3.修改nacos-console模块配置文件application.properties :

spring.sql.init.platform=dm
### Count of DB:
db.num=1

### Connect URL of DB:
# db.url.0=jdbc:mysql://127.0.0.1:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
# db.user=nacos
# db.password=nacos
db.jdbcDriverName=dm.jdbc.driver.DmDriver
db.url.0=jdbc:dm://localhost:5236?schema=NACOS
db.user.0=SYSDBA
db.password.0=SYSDBA

4. 全局搜索这个ExternalDataSourceProperties.java类，添加如下信息：

    //添加变量
    private String jdbcDriverName;

    public String getJdbcDriverName() {
        return jdbcDriverName;
    }

    public void setJdbcDriverName(String jdbcDriverName) {
        this.jdbcDriverName = jdbcDriverName;
    }
        //替换原来的方法
	   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);
            if (StringUtils.isEmpty(poolProperties.getDataSource().getDriverClassName())) {
                System.out.println("jdbcDriverName=" + jdbcDriverName);
                if (StringUtils.isNotEmpty(jdbcDriverName)) {
                    poolProperties.setDriverClassName(jdbcDriverName);
                } else {
                    poolProperties.setDriverClassName(JDBC_DRIVER_NAME);
                }
                System.out.println("dataSources=" + dataSources);
            }
            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();
            if (StringUtils.isEmpty(ds.getConnectionTestQuery())) {
                ds.setConnectionTestQuery(TEST_QUERY);
            }
            dataSources.add(ds);
            callback.accept(ds);
        }
        Preconditions.checkArgument(CollectionUtils.isNotEmpty(dataSources), "no datasource available");
        return dataSources;
    }

5. 修改DataSourceConstant.java类，添加变量：

public static final String DM = "dm";

6.修改ExternalConfigInfoPersistServiceImpl.java这个类的176和194行异常DuplicateKeyException改成DataIntegrityViolationException 

7.nacos-datasource-plugin模块添加dm实现类，复制一个mysql包，然后把所有类名换成Dm，再把里面所有跟mysql相关的变量换成dm,如下：

同时把对应resources目录下的文件，添加如下内容：

8.在根目录运行：

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

9.在nacos-distribution模块下会有生成的jar包，然后可以正常使用访问了。。。