场景：本来想在工作项目上整合工作流 flowable，一直没成功，就在本地安装了 postgre，想在本地先看看能不能成功，pom 文件是复制工作项目的配置，启动后一直报这个错误：
org.postgresql.util.PSQLException: 不支援 10 验证类型。请核对您已经组态 pg_hba.conf 文件包含客户端的IP位址或网路区段，以及驱动程序所支援的验证架构模式已被支援。at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:634) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:217) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:51) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:215) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]at org.postgresql.Driver.makeConnection(Driver.java:404) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]at org.postgresql.Driver.connect(Driver.java:272) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na]at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) [HikariCP-4.0.3.jar:na]at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) [HikariCP-4.0.3.jar:na]at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-4.0.3.jar:na]at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-4.0.3.jar:na]at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:159) [spring-jdbc-5.3.22.jar:5.3.22]at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:117) [spring-jdbc-5.3.22.jar:5.3.22]at org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:223) [spring-jdbc-5.3.22.jar:5.3.22]at com.sun.proxy.$Proxy61.getMetaData(Unknown Source) [na:na]at mon.engine.impl.AbstractEngineConfiguration.initDatabaseType(AbstractEngineConfiguration.java:476) [flowable-engine-common-6.6.0.jar:6.6.0]at mon.engine.impl.AbstractEngineConfiguration.initDataSource(AbstractEngineConfiguration.java:468) [flowable-engine-common-6.6.0.jar:6.6.0]at org.flowable.app.engine.AppEngineConfiguration.init(AppEngineConfiguration.java:208) [flowable-app-engine-6.6.0.jar:6.6.0]at org.flowable.app.engine.AppEngineConfiguration.buildAppEngine(AppEngineConfiguration.java:192) [flowable-app-engine-6.6.0.jar:6.6.0]
这个问题是因为，postgre 的驱动版本比较老，我使用的是这个版本：
<dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><version>9.4.1212.jre7</version></dependency>
但是我本地安装的 postgre 版本是 14
后面我切换成这个版本的驱动，就没问题了
<dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><version>42.5.0</version></dependency>
不过这个异常的场景不止这个。
