我无法弄清楚为什么我在这里得到“无效的列名” 。
我们已经直接在Oracle中尝试了sql的变体,并且工作正常,但是当我使用jdbcTemplate尝试时,出了点问题。
List<Dataholder> alleXmler = jdbcTemplate.query("select p.applicationid, x.datadocumentid, x.datadocumentxml " +
"from CFUSERENGINE51.PROCESSENGINE p " +
"left join CFUSERENGINE51.DATADOCUMENTXML x " +
"on p.processengineguid = x.processengineguid " +
"where x.datadocumentid = 'Disbursment' " +
"and p.phasecacheid = 'Disbursed' ",
(rs, rowNum) -> {
return Dataholder.builder()
.applicationid(rs.getInt("p.applicationid"))
.datadocumentId(rs.getInt("x.datadocumentid"))
.xml(lobHandler.getClobAsString(rs, "x.datadocumentxml"))
.build();
});
适用于Oracle的整个sql是这样的:
select
process.applicationid,
xml.datadocumentid,
xml.datadocumentxml
from CFUSERENGINE51.PROCESSENGINE process
left join CFUSERENGINE51.DATADOCUMENTXML xml
on process.processengineguid = xml. processengineguid
where xml.datadocumentid = 'Disbursment'
and process.phasecacheid = 'Disbursed'
and process.lastupdatetime > sysdate-14
整个堆栈跟踪:
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:507)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:803)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:784)
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:771)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175)
at no.gjensidige.bank.datavarehus.kontonrinfridd.Application.main(Application.java:44)
... 6 more
Caused by: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar [select p.applicationid, x.datadocumentid, x.datadocumentxml from CFUSERENGINE51.PROCESSENGINE p left join CFUSERENGINE51.DATADOCUMENTXML x on p.processengineguid = x.processengineguid where x.datadocumentid = 'Disbursment' ]; nested exception is java.sql.SQLException: Invalid column name
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:231)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:419)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:474)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:484)
at no.gjensidige.bank.datavarehus.kontonrinfridd.Application.run(Application.java:61)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:800)
... 12 more
Caused by: java.sql.SQLException: Invalid column name
at oracle.jdbc.driver.OracleStatement.getColumnIndex(OracleStatement.java:4146)
at oracle.jdbc.driver.InsensitiveScrollableResultSet.findColumn(InsensitiveScrollableResultSet.java:300)
at oracle.jdbc.driver.GeneratedResultSet.getString(GeneratedResultSet.java:1460)
at org.apache.commons.dbcp2.DelegatingResultSet.getString(DelegatingResultSet.java:267)
at org.apache.commons.dbcp2.DelegatingResultSet.getString(DelegatingResultSet.java:267)
at no.gjensidige.bank.datavarehus.kontonrinfridd.Application.lambda$run$0(Application.java:69)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60)
at org.springframework.jdbc.core.JdbcTemplate$1QueryStatementCallback.doInStatement(JdbcTemplate.java:463)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:408)
... 16 more
最佳答案
问题不在于查询。查询运行正常。
问题在于行映射将行从ResultSet
转换为域对象。似乎在您的应用程序中,作为行映射的一部分,您试图从ResultSet
中读取不包含它的列中的值。
您的堆栈跟踪的关键行是底部的以下三行:
at org.apache.commons.dbcp2.DelegatingResultSet.getString(DelegatingResultSet.java:267)
at no.gjensidige.bank.datavarehus.kontonrinfridd.Application.lambda$run$0(Application.java:69)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93)
这三行的中间似乎在您的代码中。
Application
类的第69行包含一个称为ResultSet.getString()
的lambda,但由于这会导致“无效的列名”错误,因此(a)您正在传递的是列名的字符串,而不是数字列的索引,并且(b )您要传递的列名在结果集中不存在。既然您已经编辑了问题以包括对
jdbcTemplate.query()
的调用,尤其是负责将结果集行映射到对象的lambda,那么问题就更加清楚了。当使用列名而不是索引来调用rs.getInt(...)
或rs.getString(...)
时,请勿包括诸如p.
或x.
之类的前缀。代替编写rs.getInt("p.applicationid")
或rs.getInt("x.datadocumentid")
,而编写rs.getInt("applicationid")
或rs.getInt("datadocumentid")
。