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這篇文章主要介紹Spring boot調用Oracle存儲過程的方法有哪些，文中介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們一定要看完！
前言
因工作需要將公司SSH項目改為Spingboot項目，將項目中部分需要調用存儲過程的部分用entityManagerFactory.unwrap(SessionFactory.class).openSession()來獲取Session實現后發現項目訪問數據庫超過十次就會掛掉，原因是Springboot連接池數量默認為10，猜測是每次訪問數據庫后連接未釋放導致的，手動關閉session后問題解決。
解決問題的過程中又發現了另外兩種調用方式：
Session session = entityManager.unwrap(Session.class);完整代碼
package com.hzjd.produre.repository;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.ParameterMode;
import javax.persistence.PersistenceContext;
import javax.persistence.StoredProcedureQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.procedure.ProcedureCall;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import com.hzjd.produre.bean.QueryResponse;
import com.hzjd.produre.utils.Assistant;
@Repository
public class ProdureDAO {
public final static String PUBLIC_PAG_SYS_GETNEXTID = "PUBLIC_PAG.SYS_GETNEXTID";
public final static String PSBC_QUERYBILL = "PSBCPAY.QUERYBILL";
@PersistenceContext
EntityManager entityManager;
@Autowired
EntityManagerFactory entityManagerFactory;
public Session getSession() {
return entityManagerFactory.unwrap(SessionFactory.class).openSession();
}
/**
* 使用entityManager調用存儲過程
*
* @param pay_ID
* @return
*/
public QueryResponse queryBill1(String pay_ID) throws Exception {
QueryResponse queryResponse = new QueryResponse();
StoredProcedureQuery call = entityManager.createStoredProcedureQuery(PSBC_QUERYBILL);
call.registerStoredProcedureParameter(1, String.class, ParameterMode.IN).setParameter(1, pay_ID);
call.registerStoredProcedureParameter(2, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(3, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(4, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(5, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(6, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(7, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(8, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(9, String.class, ParameterMode.OUT);
call.registerStoredProcedureParameter(10, String.class, ParameterMode.OUT);
call.execute();
queryResponse.getBody().setPAY_ID(pay_ID);
queryResponse.getBody().setCUSTNAME(Assistant.nullToEmpty(call.getOutputParameterValue(2)));
queryResponse.getBody().setHOME_ADDR(Assistant.nullToEmpty(call.getOutputParameterValue(3)));
queryResponse.getBody().setTRAN_AMT(Assistant.nullToEmpty(call.getOutputParameterValue(5)));
queryResponse.getBody().setTOTAL_AMT(Assistant.nullToEmpty(call.getOutputParameterValue(6)));
queryResponse.getBody().setBALANCE(Assistant.nullToEmpty(call.getOutputParameterValue(8)));
int errorcode = Assistant.nullToInt(call.getOutputParameterValue(9));
String errormsg = Assistant.nullToEmpty(call.getOutputParameterValue(10));
if (errorcode == 0) {
return queryResponse;
} else {
throw new Exception(errormsg);
}
}
/**
* 使用sessionFactory開啟Session調用存儲過程
*
* @param pay_ID
* @return
*/
public QueryResponse queryBill2(String pay_ID) throws Exception {
QueryResponse queryResponse = new QueryResponse();
// 調用完成后需關閉Session否則會出現連接失效
try (Session session = getSession();) {
ProcedureCall call = session.createStoredProcedureCall(PSBC_QUERYBILL);
call.registerParameter(1, String.class, ParameterMode.IN).bindValue(pay_ID);
call.registerParameter(2, String.class, ParameterMode.OUT);
call.registerParameter(3, String.class, ParameterMode.OUT);
call.registerParameter(4, String.class, ParameterMode.OUT);
call.registerParameter(5, String.class, ParameterMode.OUT);
call.registerParameter(6, String.class, ParameterMode.OUT);
call.registerParameter(7, String.class, ParameterMode.OUT);
call.registerParameter(8, String.class, ParameterMode.OUT);
call.registerParameter(9, String.class, ParameterMode.OUT);
call.registerParameter(10, String.class, ParameterMode.OUT);
queryResponse.getBody().setPAY_ID(pay_ID);
queryResponse.getBody().setCUSTNAME(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(2)));
queryResponse.getBody().setHOME_ADDR(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(3)));
queryResponse.getBody().setTRAN_AMT(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(5)));
queryResponse.getBody().setTOTAL_AMT(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(6)));
queryResponse.getBody().setBALANCE(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(8)));
int errorcode = Assistant.nullToInt(call.getOutputs().getOutputParameterValue(9));
String errormsg = Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(10));
if (errorcode == 0) {
return queryResponse;
} else {
throw new Exception(errormsg);
}
}
}
/**
* 使用sessionFactory開啟Session調用存儲過程
*
* @param pay_ID
* @return
*/
public QueryResponse queryBill3(String pay_ID) throws Exception {
QueryResponse queryResponse = new QueryResponse();
Session session = entityManager.unwrap(Session.class);
ProcedureCall call = session.createStoredProcedureCall(PSBC_QUERYBILL);
call.registerParameter(1, String.class, ParameterMode.IN).bindValue(pay_ID);
call.registerParameter(2, String.class, ParameterMode.OUT);
call.registerParameter(3, String.class, ParameterMode.OUT);
call.registerParameter(4, String.class, ParameterMode.OUT);
call.registerParameter(5, String.class, ParameterMode.OUT);
call.registerParameter(6, String.class, ParameterMode.OUT);
call.registerParameter(7, String.class, ParameterMode.OUT);
call.registerParameter(8, String.class, ParameterMode.OUT);
call.registerParameter(9, String.class, ParameterMode.OUT);
call.registerParameter(10, String.class, ParameterMode.OUT);
queryResponse.getBody().setPAY_ID(pay_ID);
queryResponse.getBody().setCUSTNAME(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(2)));
queryResponse.getBody().setHOME_ADDR(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(3)));
queryResponse.getBody().setTRAN_AMT(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(5)));
queryResponse.getBody().setTOTAL_AMT(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(6)));
queryResponse.getBody().setBALANCE(Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(8)));
int errorcode = Assistant.nullToInt(call.getOutputs().getOutputParameterValue(9));
String errormsg = Assistant.nullToEmpty(call.getOutputs().getOutputParameterValue(10));
if (errorcode == 0) {
return queryResponse;
} else {
throw new Exception(errormsg);
}
}
}以上是Spring boot調用Oracle存儲過程的方法有哪些的所有內容，感謝各位的閱讀！希望分享的內容對大家有幫助，更多相關知識，歡迎關注億速云行業資訊頻道！
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