Question

我遇到问题，我的项目使用 postgreslq-jdbc jar和 postgis-jdbc jar。我把它放在我的maven pom上，现在我无法连接到数据库。我将postgreslq-jdbc.jar版本更新为9.4，与我的Postgre相同。

有什么建议吗？

Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: org.postgresql.core.BaseConnection.getEncoding()Lorg/postgresql/core/Encoding;
at org.postgresql.jdbc2.AbstractJdbc2ResultSet.getInt(AbstractJdbc2ResultSet.java:2009)
at org.postgresql.jdbc2.AbstractJdbc2ResultSet.getInt(AbstractJdbc2ResultSet.java:2366)
at com.ibatis.sqlmap.engine.type.IntegerTypeHandler.getResult(IntegerTypeHandler.java:35)
at com.ibatis.sqlmap.engine.mapping.result.ResultMap.getPrimitiveResultMappingValue(ResultMap.java:626)
at com.ibatis.sqlmap.engine.mapping.result.ResultMap.getResults(ResultMap.java:345)
at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:384)
at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleMultipleResults(SqlExecutor.java:300)
at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:189)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForList(MappedStatement.java:139)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:567)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:541)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:122)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:98)
at com.ibatis.dao.client.template.SqlMapDaoTemplate.queryForList(SqlMapDaoTemplate.java:300)

Answer 1

可能你使用了错误的类

org.postgresql.core.BaseConnection

此外，您可以使用调用此类的错误版本的代码。

由java.lang.NoSuchMethodError引起：org.postgresql.core.BaseConnection.getEncoding（）Lorg / postgresql / core / Encoding;

1 个答案: