IDEA搭建SSM项目实现增删改查

首先打开IDEA，File—>New—>Project创建项目

选择左侧导航栏里的Maven，勾上勾，选择webapp

按如下图进行填写

创建完成后进入项目，右下角弹出的提示点击右边的Enable Auto-Import，自动配置

连接数据库，我用的是Mysql数据库，准备好有数据的数据库表

在pom.xml里导入所需jar包：

  4.0.0
  war

  Student-ssm
  com.accp
  Student-ssm
  1.0-SNAPSHOT

  
      
          org.aspectj
          aspectjweaver
          1.8.8
      
      
      
          org.springframework
          spring-webmvc
          4.3.12.RELEASE
      
      
          org.springframework
          spring-tx
          4.3.12.RELEASE
      
      
          org.springframework
          spring-jdbc
          4.3.12.RELEASE
      

      
          org.mybatis
          mybatis
          3.4.5
      

      
          org.mybatis
          mybatis-spring
          1.3.1
      

      
          mysql
          mysql-connector-java
          5.1.44
      

      
      
          com.alibaba
          druid
          1.1.2
      

      
          javax.servlet
          jstl
          1.2
      
      
      
          javax.servlet
          javax.servlet-api
          3.0.1
          provided
      
  

总体结构：

web.xml代码：

    
    
        characterEncodingFilter
        org.springframework.web.filter.CharacterEncodingFilter
        
            encoding
            UTF-8
        
        
            forceEncoding
            true
        
    
    
        characterEncodingFilter
        /*
    

    
    
        springmvc
        org.springframework.web.servlet.DispatcherServlet
        
            contextConfigLocation
            classpath:springmvc.xml
        
    
    
        springmvc
        /
    


        

springmvc.xml代码：

entity学生实体类代码：

package com.accp.entity;


public class Studentinfo {

  private long sid;
  private String sname;
  private String sgender;
  private long sage;
  private String saddress;
  private String semail;


  public long getSid() {
    return sid;
  }

  public void setSid(long sid) {
    this.sid = sid;
  }


  public String getSname() {
    return sname;
  }

  public void setSname(String sname) {
    this.sname = sname;
  }


  public String getSgender() {
    return sgender;
  }

  public void setSgender(String sgender) {
    this.sgender = sgender;
  }


  public long getSage() {
    return sage;
  }

  public void setSage(long sage) {
    this.sage = sage;
  }


  public String getSaddress() {
    return saddress;
  }

  public void setSaddress(String saddress) {
    this.saddress = saddress;
  }


  public String getSemail() {
    return semail;
  }

  public void setSemail(String semail) {
    this.semail = semail;
  }

}

dao层StudentinfoDao代码：

package com.accp.dao;

import com.accp.entity.Studentinfo;

import java.util.List;

public interface StudentinfoDao {

    List queryStudent();

    int addStudentinfo(Studentinfo studentinfo);

    int deleteStudentinfo(Studentinfo studentinfo);

    int updateStudentinfo(Studentinfo studentinfo);

    Studentinfo getByStudentId(Studentinfo studentinfo);

}

resources下xml里Studentinfo.xml代码：

    
        select * from studentinfo;
    

    
        select * from studentinfo where sid = #{sid}
    

    
        insert into studentinfo value (default ,#{sname},#{sgender},#{sage},#{saddress},#{semail})
    

    
        delete from studentinfo where sid = #{sid}
    

    
        update studentinfo
        
            sname = #{sname},
            sgender = #{sgender},
            sage = #{sage},
            saddress = #{saddress},
            semail = #{semail},
        
    

service层StudentinfoService代码：

package com.accp.service;

import com.accp.entity.Studentinfo;

import java.util.List;

public interface StudentinfoService {

    List queryStudent();

    int addStudentinfo(Studentinfo studentinfo);

    int deleteStudentinfo(Studentinfo studentinfo);

    int updateStudentinfo(Studentinfo studentinfo);

    Studentinfo getByStudentId(Studentinfo studentinfo);

}

service层Impl实现类StudentinfoServiceImpl代码：

package com.accp.service.impl;

import com.accp.dao.StudentinfoDao;
import com.accp.entity.Studentinfo;
import com.accp.service.StudentinfoService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

@Service
public class StudentinfoServiceImpl implements StudentinfoService {

    @Resource
    private StudentinfoDao studentinfoDao;

    public List queryStudent() {
        return studentinfoDao.queryStudent();
    }

    public int addStudentinfo(Studentinfo studentinfo) {
        return studentinfoDao.addStudentinfo(studentinfo);
    }

    public int deleteStudentinfo(Studentinfo studentinfo) {
        return studentinfoDao.deleteStudentinfo(studentinfo);
    }

    public int updateStudentinfo(Studentinfo studentinfo) {
        return studentinfoDao.updateStudentinfo(studentinfo);
    }

    public Studentinfo getByStudentId(Studentinfo studentinfo) {
        return studentinfoDao.getByStudentId(studentinfo);
    }
}

controller控制层StudentinfoController代码：

package com.accp.controller;

import com.accp.entity.Studentinfo;
import com.accp.service.StudentinfoService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;

@Controller
public class StudentinfoController {

    @Resource
    private StudentinfoService studentinfoService;

    @RequestMapping("/showList")
    public String showList(Model model){
        model.addAttribute("students",studentinfoService.queryStudent());
        return "index";
    }

    @RequestMapping("/JumpAdd")
    public String jumpAdd(){
        return "add";
    }

    @RequestMapping("/AddList")
    public String addList(Studentinfo studentinfo){
        studentinfoService.addStudentinfo(studentinfo);
        return "redirect:showList";
    }

    @RequestMapping("/DeleteS")
    public String deleteS(Studentinfo studentinfo){
        studentinfoService.deleteStudentinfo(studentinfo);
        return "redirect:showList";
    }

    @RequestMapping("/JumpUpdate")
    public String jumpUpdate(Studentinfo studentinfo,Model model){
        model.addAttribute("stu",studentinfoService.getByStudentId(studentinfo));
        return "update";
    }

    @RequestMapping("/UpdateS")
    public String updateS(Studentinfo studentinfo){
        studentinfoService.updateStudentinfo(studentinfo);
        return "redirect:showList";
    }
}

jsp页面代码：

显示页面(包含删除操作)：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>


    


增加
    
            

        

            
编号
            
姓名
            
性别
            
年龄
            
地址
            
email
            
操作
        
        

                
${stu.sid}
                
${stu.sname}
                
${stu.sgender}
                
${stu.sage}
                
${stu.saddress}
                
${stu.semail}
                
删除
                
修改
            
        

    

添加页面：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    



    姓名：

    性别：

    年龄：

    地址：

    邮箱：

    

修改页面：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    



    姓名：

    性别：

    年龄：

    地址：

    邮箱：

    

显示效果：