SSM整合測試
阿新 • • 發佈：2020-12-23
技術標籤：SSM邊學邊用
完成了SSM框架整合環境的搭建工作，就已經完成了這三個框架大部分的整合工作。接下來，以查詢客戶資訊為例，來講解SSM框架的整合開發，其具體實現步驟如下。
建立資料表
在test資料庫（依據db.properties配置檔案的資料庫）中建立customer資料表，並匯入測試資料
CREATE TABLE `customer` ( `id` int(10) NOT NULL AUTO_INCREMENT, `username` varchar(255) NOT NULL, `job` varchar(255) NOT NULL, `phone` varchar(255) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; -- ---------------------------- -- Records of customer -- ---------------------------- INSERT INTO `customer` VALUES ('1', '小明', '醫生','13567344567'); INSERT INTO `customer` VALUES ('2', '小紅', '教師','18756576778');
在com.syg.po包中
建立持久化類Customer：
package com.syg.po; public class Customer { private Integer id; private String username; private String job; private String phone; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getJob() { return job; } public void setJob(String job) { this.job = job; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } }
在com.syg.dao包中
在包中建立介面CustomerDao：
package com.syg.dao;
import com.syg.po.Customer;
public interface CustomerDao {
public Customer findCustomerById(Integer id);
}並在resources/mapper下建立對應的對映檔案CustomerDao.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"> <mapper namespace="com.syg.dao.CustomerDao"> <select id="findCustomerById" parameterType="Integer" resultType="Customer"> select * from customer where id = #{id} </select> </mapper>
在com.syg.service包中
建立介面CustomerService，並在CustomerService中定義通過id查詢客戶的方法:
package com.syg.service;
import com.syg.po.Customer;
public interface CustomerService {
public Customer findCustomerById(Integer id);
}在com.syg.service.impl包中
在包中建立CustomerService介面的實現類CustomerServiceImpl
package com.syg.service.impl;
import com.syg.dao.CustomerDao;
import com.syg.po.Customer;
import com.syg.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
@Transactional
public class CustomerServiceImpl implements CustomerService {
@Autowired
private CustomerDao customerDao;
//查詢客戶
public Customer findCustomerById(Integer id){
return this.customerDao.findCustomerById(id);
}
}在com.syg.controller包中
建立用於處理頁面請求的控制器類CustomerController
package com.syg.controller;
import com.syg.po.Customer;
import com.syg.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class CustomerController {
@Autowired
private CustomerService customerService;
@RequestMapping("/findCustomerById")
public String findCustomerById(Integer id, Model model){
Customer customer = customerService.findCustomerById(id);
model.addAttribute("customer",customer);
return "customer";
}
}建立展示頁面
在WEB-INF目錄下，建立一個jsp資料夾，在該資料夾下建立一個用於展示客戶詳情的頁面檔案customer.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>客戶資訊</title>
</head>
<body>
<table border="1">
<tr>
<td>編號</td>
<td>姓名</td>
<td>職業</td>
<td>手機號</td>
</tr>
<tr>
<td>${customer.id}</td>
<td>${customer.username}</td>
<td>${customer.job}</td>
<td>${customer.phone}</td>
</tr>
</table>
</body>
</html>點選執行，在瀏覽器中訪問地址http://localhost:1234/findCustomerById?id=1
總結
理清每個包下存放的檔案是什麼作用