在JOOQ中使用PL / SQL函數

Question

我需要調用以表形式返回對象類型的PL / SQL函數。 基本上像：

select * from TABLE(get_druck_variablen(123456);

到目前為止，在JOOQ im中使用本機查詢，它可以正常工作：

final Result<Record> result = create.fetch("select * from TABLE(myschema.get_druck_variablen(" + id + "))");

但是我想在JOOQ中正確地做。

1）我來到這里：

final GetDruckVariablen getDruckVariablen = new GetDruckVariablen();
getDruckVariablen.setPId(id);
getDruckVariablen.execute(); 

但是后來我得到了這個例外

Method threw 'java.lang.NullPointerException' exception. Cannot evaluate de.company.jooq.routines.GetDruckVariablen.toString() 

2）然后我嘗試了這個：

  final TabOtDruckVariablenRecord getDruckVariablen = Routines.getDruckVariablen(create.configuration(), id).;

然后我得到了這個例外：

Caused by: org.springframework.jdbc.BadSqlGrammarException: jOOQ; bad SQL grammar [select "array_table"."COLUMN_VALUE" from table ("MYSCHEMA"."GET_DRUCK_VARIABLEN"(?)) "array_table"]; nested exception is java.sql.SQLSyntaxErrorException: ORA-00904: "array_table"."COLUMN_VALUE": ungültiger Bezeichner 

有關信息，這是我的PL / SQL函數：

create or replace FUNCTION      get_druck_variablen(p_id IN vk_types.t_id) RETURN myschema.tab_ot_druck_variablen 
PIPELINED 
IS 
....
BEGIN 
END get_druck_variablen; 

對象類型：

create or replace TYPE      ot_druck_variablen FORCE AS OBJECT 
( 
  ob_id   NUMBER(9, 0), 
  ob_txv_name VARCHAR2(100), 
  ob_txv_wert VARCHAR2(2000) 
)

表格類型：

create or replace TYPE      tab_ot_druck_variablen AS TABLE OF myschema.ot_druck_variablen 

我真的希望有人能幫助我。

提前致謝。

最好的祝福

伊萬

---

添加了放樣軌跡以解決以下問題：

    final GetDruckVariablen getDruckVariablen = new GetDruckVariablen();
    getDruckVariablen.setPId(id);
    getDruckVariablen.execute(dslContext.configuration()); 

堆棧跟蹤：

      2017-08-16 22:25:16.039 ERROR 4928 --- [  restartedMain] o.s.boot.SpringApplication               : Application startup failed 

      java.lang.IllegalStateException: Failed to execute CommandLineRunner 
            at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:735) 
            at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:716) 
            at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:703) 
            at org.springframework.boot.SpringApplication.run(SpringApplication.java:304) 
            at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) 
            at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) 
            at de.mycompany.druckauftrag.DruckAuftragApplication.main(DruckAuftragApplication.java:31) 
            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.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) 
      Caused by: org.springframework.jdbc.BadSqlGrammarException: jOOQ; bad SQL grammar [select "array_table"."COLUMN_VALUE" from table ("MYSCHEMA"."GET_DRUCK_VARIABLEN"(?)) "array_table"]; nested exception is java.sql.SQLSyntaxErrorException: ORA-00904: "array_table"."COLUMN_VALUE": ungültiger Bezeichner 

            at org.jooq_3.9.3.ORACLE.debug(Unknown Source) 
            at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:231) 
            at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73) 
            at org.springframework.boot.autoconfigure.jooq.JooqExceptionTranslator.translate(JooqExceptionTranslator.java:92) 
            at org.springframework.boot.autoconfigure.jooq.JooqExceptionTranslator.handle(JooqExceptionTranslator.java:81) 
            at org.springframework.boot.autoconfigure.jooq.JooqExceptionTranslator.exception(JooqExceptionTranslator.java:54) 
            at org.jooq.impl.ExecuteListeners.exception(ExecuteListeners.java:245) 
            at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:364) 
            at org.jooq.impl.AbstractResultQuery.fetch(AbstractResultQuery.java:315) 
            at org.jooq.impl.SelectImpl.fetch(SelectImpl.java:2708) 
            at org.jooq.impl.AbstractRoutine.executeSelectFromOracle(AbstractRoutine.java:362) 
            at org.jooq.impl.AbstractRoutine.execute(AbstractRoutine.java:318) 
            at org.jooq.impl.AbstractRoutine.execute(AbstractRoutine.java:287) 
            at de.mycompany.druckauftrag.container.cask.KfzParam.getDruckVariablen(KfzParam.java:59) 
            at de.mycompany.druckauftrag.container.cask.KfzParam.befuelleVariablen(KfzParam.java:36) 
            at de.mycompany.druckauftrag.service.DokumentService.erzeugeDokument(DokumentService.java:55) 
            at de.mycompany.druckauftrag.service.XmlCreator.createXml(XmlCreator.java:33) 
            at de.mycompany.druckauftrag.DruckAuftragApplication.run(DruckAuftragApplication.java:46) 
            at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:732) 
            ... 11 common frames omitted 
      Caused by: java.sql.SQLSyntaxErrorException: ORA-00904: "array_table"."COLUMN_VALUE": ungültiger Bezeichner 

            at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:450) 
            at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399) 
            at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1059) 
            at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:522) 
            at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:257) 
            at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:587) 
            at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:225) 
            at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:53) 
            at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:774) 
            at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:925) 
            at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1111) 
            at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:4798) 
            at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:4901) 
            at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1385) 
            at sun.reflect.GeneratedMethodAccessor62.invoke(Unknown Source) 
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
            at java.lang.reflect.Method.invoke(Method.java:498) 
            at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:114) 
            at com.sun.proxy.$Proxy94.execute(Unknown Source) 
            at org.jooq.tools.jdbc.DefaultPreparedStatement.execute(DefaultPreparedStatement.java:195) 
            at org.jooq.impl.AbstractResultQuery.execute(AbstractResultQuery.java:270) 
            at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:349) 
            ... 22 common frames omitted

Answer 1

我懷疑您遇到了一個錯誤（目前可能已修復）。 知道您使用的是哪個jOOQ版本后，我將通過指向相關GitHub問題的鏈接來更新答案。

關於1）和NullPointerException

您嘗試進行NPE的可能原因1）：

final GetDruckVariablen getDruckVariablen = new GetDruckVariablen();
getDruckVariablen.setPId(id);
getDruckVariablen.execute(); 

...可能是您沒有將Configuration傳遞給execute()方法的事實。 “少Configuration方法假定您的常規調用先前已“附加”到Configuration 。 但最好將其明確傳遞：

getDruckVariablen.execute(configuration); 

關於本機查詢用法的旁注：

您肯定知道這一點，但我必須為以后的讀者提一下。 使用jOOQ普通SQL API不僅會給游標緩存帶來壓力，還會帶來SQL注入的一定風險：

final Result<Record> result = create.fetch(
  "select * from TABLE(myschema.get_druck_variablen(" + id + "))");

最好使用綁定變量，這對於普通SQL也是完全可行的：

final Result<Record> result = create.fetch(
  "select * from TABLE(myschema.get_druck_variablen(?))", id);