我无法弄清楚为什么我会收到＆＃34;无效的列名＆＃34; 。
我们已经在Oracle中直接尝试了sql的一个变体，它工作正常，但是当我使用jdbcTemplate尝试它时，出现了问题。
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$1QueryStatementCallback.doInStatement(JdbcTemplate.java:463)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:408)
... 16 more
答案 0 :(得分：12)
问题不在于查询。查询运行正常。
问题出在行映射中，它将行从ResultSet转换为域对象。似乎作为应用程序中行映射的一部分，您试图从ResultSet中读出一个它不包含的列的值。
您的堆栈跟踪的关键行是以下三个，靠近底部：
at org.apache.commons.dbcp2.DelegatingResultSet.getString(DelegatingResultSet.java:267)
at no.gjensidige.bank.datavarehus.kontonrinfridd.Application.lambda$run$0(Application.java:69)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93)
这三行中间似乎在您的代码中。 Application类的第69行包含一个正在调用ResultSet.getString()的lambda，但这会产生一个＆＃39;无效的列名称＆＃39;错误，然后（a）您传递的是字符串而不是数字列索引，并且（b）您传入的列名称不存在于结果集中。
既然您已编辑了问题以包含对jdbcTemplate.query()的调用，特别是负责将结果集行映射到对象的lambda，问题就更清楚一些了。使用列名而不是索引来调用rs.getInt(...)或rs.getString(...)时，请不要包含p.或x.等前缀。写rs.getInt("p.applicationid")或rs.getInt("x.datadocumentid")，而不是撰写rs.getInt("applicationid")或rs.getInt("datadocumentid")。
答案 1 :(得分：0)
您需要表定义来找出问题所在。安装/运行Oracle SQL Developer（它是免费的），设置JDBC连接并调查架构。
您需要检查以下列的存在：
CFUSERENGINE51.PROCESSENGINE.applicationid,
CFUSERENGINE51.PROCESSENGINE.lastupdatetime
CFUSERENGINE51.PROCESSENGINE.phasecacheid
CFUSERENGINE51.PROCESSENGINE.processengineguid
CFUSERENGINE51.DATADOCUMENTXML.datadocumentid
CFUSERENGINE51.DATADOCUMENTXML.datadocumentxml
CFUSERENGINE51.DATADOCUMENTXML.processengineguid
答案 2 :(得分：0)
java.sql.SQLException: 无效的列名 在 oracle.jdbc.driver.OracleStatement.getColumnIndex(OracleStatement.java:4146) 在 oracle.jdbc.driver.InsensitiveScrollableResultSet.findColumn(InsensitiveScrollableResultSet.java:300) 在 oracle.jdbc.driver.GeneratedResultSet.getInt(GeneratedResultSet.java:1350) 在 com.zaxxer.hikari.pool.HikariProxyResultSet.getInt(HikariProxyResultSet.java)
当您尝试从结果集中获取的 index_name 不存在时，也会出现此问题，请检查您的查询并与您尝试从 ResultSet 中获取的列索引名称匹配。这个就可能是这个原因造成的。