我想不通为什么我收到“无效列名”在这里。
我们曾尝试直接在Oracle中SQL的一个变种，它工作正常，但是当我尝试使用的JdbcTemplate那么什么是错的。
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();
});
这在甲骨文工作的整个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$1QueryStatementCallback.doInStatement(JdbcTemplate.java:463)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:408)
... 16 more
这个问题是不是查询。查询运行良好。
的问题是在该行映射从一个行转换ResultSet成域对象。看来，在你的应用程序的行映射的一部分，你正试图将读出ResultSet来自列中的值，它不包含。
您的堆栈跟踪的关键线以下三种，接近底部的：
at org.apache.commons.dbcp2.DelegatingResultSet.getString(DelegatingResultSet.java:267)
at no.gjensidige.bank.datavarehus.kontonrinfridd.Application.lambda$run$0(Application.java:69)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93)
这三条线的中间会出现在你的代码。你的69号线Application类包含其调用拉姆达ResultSet.getString()，但因为这会导致一个“无效的列名称的错误，则（a）您传递一个字符串的列名，而不是数字列的索引，和（b）的你传递在结果集不存在的列名。
现在，你已经编辑了自己的问题，包括调用jdbcTemplate.query()，特别是负责映射的结果集行对象的拉姆达，问题是一点点清晰。当调用rs.getInt(...)或rs.getString(...)列名，而不是指标，不包括前缀，如p.或x.。取而代之的写作rs.getInt("p.applicationid")或者rs.getInt("x.datadocumentid")，写rs.getInt("applicationid")或rs.getInt("datadocumentid")。
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