fix: DB2 username can not be save (#13764)

db2's jdbcUrl should be like this "jdbc:db2://localhost:50000/sample:currentSchema=DB2INST1;characterEncoding=UTF-8;".should be ":"

dolphinscheduler-datasource-plugin/dolphinscheduler-datasource-db2/src/main/java/org/apache/dolphinscheduler/plugin/datasource/db2/param/Db2DataSourceProcessor.java

@@ -54,7 +54,7 @@ public class Db2DataSourceProcessor extends AbstractDataSourceProcessor {
         Db2DataSourceParamDTO db2DatasourceParamDTO = new Db2DataSourceParamDTO();
         db2DatasourceParamDTO.setDatabase(connectionParams.getDatabase());
         db2DatasourceParamDTO.setOther(connectionParams.getOther());
-        db2DatasourceParamDTO.setUserName(db2DatasourceParamDTO.getUserName());
+        db2DatasourceParamDTO.setUserName(connectionParams.getUser());
 
         String[] hostSeperator = connectionParams.getAddress().split(Constants.DOUBLE_SLASH);
         String[] hostPortArray = hostSeperator[hostSeperator.length - 1].split(Constants.COMMA);
@@ -97,7 +97,7 @@ public class Db2DataSourceProcessor extends AbstractDataSourceProcessor {
     public String getJdbcUrl(ConnectionParam connectionParam) {
         Db2ConnectionParam db2ConnectionParam = (Db2ConnectionParam) connectionParam;
         if (MapUtils.isNotEmpty(db2ConnectionParam.getOther())) {
-            return String.format("%s;%s", db2ConnectionParam.getJdbcUrl(),
+            return String.format("%s:%s", db2ConnectionParam.getJdbcUrl(),
                     transformOther(db2ConnectionParam.getOther()));
         }
         return db2ConnectionParam.getJdbcUrl();

dolphinscheduler-datasource-plugin/dolphinscheduler-datasource-db2/src/test/java/org/apache/dolphinscheduler/plugin/datasource/db2/param/Db2DataSourceProcessorTest.java

@@ -85,7 +85,7 @@ public class Db2DataSourceProcessorTest {
                 .build();
         db2ConnectionParam.setOther(map);
         String jdbcUrl = db2DatasourceProcessor.getJdbcUrl(db2ConnectionParam);
-        Assertions.assertEquals("jdbc:db2://localhost:5142/default;other=other", jdbcUrl);
+        Assertions.assertEquals("jdbc:db2://localhost:5142/default:other=other", jdbcUrl);
     }
 
     @Test