如何在hibernate中用條件寫更新查詢

Question

public String passlink(String companyName, String mailName) {

    Session session = Hibernateutil.getSessionFactory().openSession();

    Transaction transaction = null;

    try {
        transaction = session.beginTransaction();

        String queryString="UPDATE account SET companyname = :companyName WHERE companyname like 'm' AND Email LIKE :mailName";
        Query query=session.createQuery(queryString);

        query.setParameter("companyName", companyName);
        query.setParameter("mailName", mailName);
        int result = query.executeUpdate();

        System.out.println("Rows affected: " + result);

            System.out.println("Successfully updated");
        transaction.commit();

    } catch (Exception e) {
        value = "FAIL";
                   e.printStackTrace();
        //System.out.println("Error--> " + e.getMessage());
    }
    return value;

}

我寫更新查詢

String queryString =“UPDATE account SET companyname =：companyName WHERE companyname like'm'AND Email LIKE：mailName”;

像這樣，但它給出了以下錯誤。

java.lang.IndexOutOfBoundsException：Index：0，size：0 at java.util.ArrayList.RangeCheck（Unknown Source）at java.util.ArrayList.get（Unknown Source）at org.hibernate.hql.ast.HqlSqlWalker.postProcessUpdate（位於org.hibernate.hql的org.hibernate.hql.antlr.HqlSaseWalker.statement（HqlSqlBaseWalker.java:164）的org.hibernate.hql.ast.QueryTranslatorImpl.analyze（QueryTranslatorImpl.java:189）中的HqlSqlWalker.java:390） org.hibernate.hql.ast.QueryTranslatorImpl.compile（QueryTranslatorImpl.java:83）中的.ast.QueryTranslatorImpl.doCompile（QueryTranslatorImpl.java:130）atg.hibernate.impl.SessionFactoryImpl.getQuery（SessionFactoryImpl.java:425）at at Org.hibernate.impl.SessionImpl.getQueries（SessionImpl.java:880）org.hibernate.impl.SessionImpl.executeUpdate（SessionImpl.java:861）org.hibernate.impl.QueryImpl.executeUpdate（QueryImpl.java:89） at com.njob.dao.AccountDao.passlink（AccountDao.java:213）at com.njob.action.companylink.doPost（companylink.java:34）at javax.servlet.http.HttpServlet.service（Htt） pServlet.java:709）位於org.apache.catalina.core的org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:237）的javax.servlet.http.HttpServlet.service（HttpServlet.java:802） .applicationFilterChain.doFilter（ApplicationFilterChain.java:157）位於org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:214）org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:178）at at Org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:126）org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:105）org.apache.catalina.core.StandardEngineValve.invoke（ StandardEngineValve.java:107）org.apache.catalina.connevice.CoyoteAdapter.service（CoyoteAdapter.java:148）org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825）org.apache.coyote .http11.Http11Protocol $ Http11ConnectionHandler.processConnection（Http11Protocol.java:731）at org.apache.tomcat.util.net.PoolT atg.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt（LeaderFollowerWorkerThread.java:80）中的cpEndpoint.processSocket（PoolTcpEndpoint.java:526）位於org.apache.tomcat.util.threads.ThreadPool $ ControlRunnable.run（ThreadPool。 java：684）at java.lang.Thread.run（Unknown Source）

Answer 1

將查詢更改為

String queryString="UPDATE account SET companyname = :companyName WHERE companyname like 'm' AND email LIKE :mailName";

並使用

query.setParameter("companyName", companyName);
query.setParameter("mailName", mailName);

---

看到

• 使用hibernate進行本機SQL查詢

Answer 2

嘗試這個

 query.setParameter("companyName", companyName);

您使用的參數是companyName