SSM-Mybatis呼叫Oracle儲存過程返回結果集(遊標)示例
阿新 • • 發佈：2019-02-07
1.建立一個包
此處建立一個包,是為了建立儲存過程時,用遊標作為out輸出引數時宣告為遊標型別用的.
--建立一個包
create or replace
package types
as
type empListCursor is ref cursor;
end types;2.建立儲存過程
用in表示儲存過程的輸入引數,用out表示儲存過程的輸出引數,此處輸出引數為遊標.
CREATE OR REPLACE PROCEDURE
QUERYEMPSBYDEPTNO(pdeptno in Integer,empList out types.empListCursor) is
BEGIN 3.EmpMapper.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 4.EmpMapper.java
package com.casic.dao;
import java.util.List;
import java.util.Map;
import com.casic.model.Emp;
public interface EmpMapper {
/* * 根據部門編號載入員工資訊列表 */
List<Emp> queryEmpByDeptno(Map<String, Object> param );
}
5.EmpService.java
package com.casic.service;
import java.util.List;
import java.util.Map;
import com.casic.model.Emp;public interface EmpService {
/* * 根據部門編號,載入員工資訊列表 */
List<Emp> queryDeptEmps(Map<String, Object> param);
}
6.EmpServiceImpl.java
package com.casic.service.impl;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.casic.dao.EmpMapper;
import com.casic.model.Emp;
import com.casic.service.EmpService;
@Service("empService")
public class EmpServiceImp implements EmpService {
@Autowired
private EmpMapper empMapper;
public List<Emp> queryDeptEmps(Map<String, Object> param) {
//查詢的過程中,已經將結果集封裝到了param集合中
empMapper.queryEmpByDeptno(param);
//根據key獲取到結果集,並進行強轉
List<Emp> empList=(List<Emp>)param.get("result");
return empList;
}
}
7.EmpController.java
package com.casic.controller;
import java.util.HashMap;
import java.util.List;import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.casic.model.Emp;
import com.casic.service.EmpService;
import oracle.jdbc.driver.OracleTypes;
@Controller
@RequestMapping("/empController")
public class EmpController {
@Autowired
private EmpService empService;
/* * 根據部門編號查詢員工資訊列表 */
@RequestMapping("/queryEmp")
public String showDeptEmps(Emp emp,Model model){
Map<String, Object> param = new HashMap<String, Object>();
//對於in引數賦值
param.put("pdeptno",emp.getDeptno());
//對於out引數 申明 param.put("result",OracleTypes.CURSOR);
List<Emp> emps = empService.queryDeptEmps(param);
model.addAttribute("emps", emps);
return "showEmps";
}
}
8.showEmps.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>emp list</title>
</head>
<body>
<table cellspacing="1" bordercolor="#990000" cellpadding="1" border="1px">
<tr>
<td>
<form action="queryEmp" method="get">
<label>部門編號:</label>
<select name="deptno">
<option value="0">全部</option>
<option value="10">10</option>
<option value="20">20</option>
<option value="30">30</option>
<option value="40">40</option>
</select>
<input type="submit" value="Research">
</form>
</td>
</tr>
<tr>
<th>序號</th>
<th>編號</th>
<th>姓名</th>
<th>職位</th>
<th>領導編號</th>
<th>入職日期</th>
<th>工資</th>
<th>獎金</th>
<th>部門編號</th>
</tr>
<c:forEach items="${emps}" var="emp" varStatus="vs">
<tr>
<td>${vs.count }</td>
<td>${emp.empno }</td>
<td>${emp.ename }</td>
<td>${emp.job }</td>
<td>${emp.mgr }</td>
<td><fmt:formatDate pattern="yyyy-MM-dd" value="${emp.hiredate}" /></td>
<td>${emp.sal }</td>
<td>${emp.comm }</td>
<td>${emp.deptno }</td>
</tr>
</c:forEach>
</table>
</body>
</html>