Set list parameter to native query

问题

I would like to set parameter to a native query,

javax.persistence.EntityManager.createNativeQuery

Something like that

Query query = em.createNativeQuery("SELECT * FROM TABLE_A a WHERE a.name IN ?");
List<String> paramList = new ArrayList<String>();
paramList.add("firstValue");
paramList.add("secondValue");
query.setParameter(1, paramList);

Trying this query result in Exception:

Caused by: org.eclipse.persistence.exceptions.DatabaseException:
Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:
You have  an error in your SQL syntax; check the manual that corresponds to your MySQL server 
version for the right syntax to use near
'_binary'??\0♣sr\0‼java.util.ArrayListx??↔??a?♥\0☺I\0♦sizexp\0\0\0☻w♦\0\0\0t\0
f' at line 1
Error Code: 1064
Call: SELECT * FROM Client a WHERE a.name IN ?
        bind => [[firstValue, secondValue]]
Query: ReadAllQuery(referenceClass=TABLE_A sql="SELECT * FROM TABLE_A a WHERE a.name IN ?")

Is it any way to set list parameter for native query, without cast to string and append it to sql query?

P.S. I'm use EclipseLink 2.5.0 and MySQL server 5.6.13

Thanks

回答1:

I believe you can only set list parameters to JPQL queries, not native queries.

Either use JPQL, or construct the SQL dynamically with the list.

回答2:

Not a solution but more of a workaround.

 Query query = em.createNativeQuery("SELECT * FROM TABLE_A a WHERE a.name IN ?");
    List<String> paramList = new ArrayList<String>();
    String queryParams = null;
    paramList.add("firstValue");
    paramList.add("secondValue");
    query.setParameter(1, paramList);

    Iterator<String> iter = paramList.iterator();
int i =0;

while(iter.hasNext(){
    if(i != paramList.size()){

    queryParams = queryParams+ iter.next() + ","; 

    }else{

    queryParams = queryParams+ iter.next();

   }
   i++;
}

query.setParameter(1, queryParams );

回答3:

It works if you name the parameter:

Query query = em.createNativeQuery("SELECT * FROM TABLE_A a WHERE a.name IN (:names)");
List<String> paramList = new ArrayList<String>();
paramList.add("firstValue");
paramList.add("secondValue");
query.setParameter("names", paramList);

来源：https://stackoverflow.com/questions/18701946/set-list-parameter-to-native-query

标签

java

sql

jpa

nativequery