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Spring boot調(diào)用Oracle存儲(chǔ)過(guò)程的兩種方式及完整代碼

更新時(shí)間：2020年08月16日 16:54:17 作者：Tiro8183

這篇文章主要給大家介紹了關(guān)于Spring boot調(diào)用Oracle存儲(chǔ)過(guò)程的兩種方式及完整代碼，文中通過(guò)示例代碼介紹的非常詳細(xì)，對(duì)大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價(jià)值，需要的朋友們下面來(lái)一起學(xué)習(xí)學(xué)習(xí)吧

前言

因工作需要將公司SSH項(xiàng)目改為Spingboot項(xiàng)目，將項(xiàng)目中部分需要調(diào)用存儲(chǔ)過(guò)程的部分用entityManagerFactory.unwrap(SessionFactory.class).openSession()來(lái)獲取Session實(shí)現(xiàn)后發(fā)現(xiàn)項(xiàng)目訪(fǎng)問(wèn)數(shù)據(jù)庫(kù)超過(guò)十次就會(huì)掛掉，原因是Springboot連接池?cái)?shù)量默認(rèn)為10，猜測(cè)是每次訪(fǎng)問(wèn)數(shù)據(jù)庫(kù)后連接未釋放導(dǎo)致的，手動(dòng)關(guān)閉session后問(wèn)題解決。

解決問(wèn)題的過(guò)程中又發(fā)現(xiàn)了另外兩種調(diào)用方式：

直接用EntityManager的createStoredProcedureQuery（）方法調(diào)用（推薦）
通過(guò)如下方式獲取Session來(lái)調(diào)用，這種方式不需要手動(dòng)關(guān)閉Session來(lái)釋放連接，具體原因我也沒(méi)搞明白，有知道的朋友歡迎指點(diǎn)
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(diào)用存儲(chǔ)過(guò)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(kāi)啟Session調(diào)用存儲(chǔ)過(guò)程
	 * 
	 * @param pay_ID
	 * @return
	 */
	public QueryResponse queryBill2(String pay_ID) throws Exception {
		QueryResponse queryResponse = new QueryResponse();
		// 調(diào)用完成后需關(guān)閉Session否則會(huì)出現(xiàn)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(kāi)啟Session調(diào)用存儲(chǔ)過(guò)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);
		}
	}
}

總結(jié)

到此這篇關(guān)于Spring boot調(diào)用Oracle存儲(chǔ)過(guò)程的兩種方式及完整代碼的文章就介紹到這了,更多相關(guān)Springboot調(diào)用Oracle存儲(chǔ)過(guò)程內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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