SSM完美整合

搭建整合环境

整合说明

整合方式有很多，我选择xml+注解的方式，单个maven工程（不使用maven父子工程）

整合思路

1. 先搭建整合的环境
2. 先把spring的配置搭建完成
3. 在使用spring框架整合SpringMVC
4. 最后使用Spring整合Mybatis

项目结构

首先引入依赖

  4.0.0

  org.example
  ssm
  1.0-SNAPSHOT
  war

  
    UTF-8
    1.8
    1.8

    5.0.2.RELEASE
    1.6.6
    1.2.17
    8.0.12
    3.4.5
  

  

    
    
      org.aspectj
      aspectjweaver
      1.6.8
    

    
      org.springframework
      spring-aop
      ${spring.version}
    

    
      org.springframework
      spring-context
      ${spring.version}
    


    
      org.springframework
      spring-web
      ${spring.version}
    

    
      org.springframework
      spring-webmvc
      ${spring.version}
    

    
      org.springframework
      spring-test
      ${spring.version}
    

    
      org.springframework
      spring-tx
      ${spring.version}
    

    
      org.springframework
      spring-jdbc
      ${spring.version}
    

    
      junit
      junit
      4.13
      compile
    

    
      mysql
      mysql-connector-java
      ${mysql.version}
      runtime
    

    
      javax.servlet
      servlet-api
      2.5
      provided
    

    
      javax.servlet.jsp
      jsp-api
      2.2
      provided
    

    
      jstl
      jstl
      1.2
    

    
    
      log4j
      log4j
      ${log4j.version}
    

    
      org.slf4j
      slf4j-api
      ${slf4j.version}
    

    
      org.slf4j
      slf4j-log4j12
      ${slf4j.version}
    
    
    
      org.mybatis
      mybatis
      ${mybatis.version}
    

    
      org.mybatis
      mybatis-spring
      1.3.0
    

    
      c3p0
      c3p0
      0.9.1.2
      jar
      compile
    

  
  
    ssm
    
      
        
          org.apache.maven.plugins
          maven-compiler-plugin
          3.2
          
            1.8
            1.8
            UTF-8
            true
          
        
      
    
  

编写实体类，及dao层

public class Account implements Serializable {
    private Integer id;
    private String name;
    private Double money;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                '}';
    }
}

@Repository("accountDao")
public interface AccountDao {
    @Select("select *from account")
    List findAll();
    @Insert("insert into account(name,money) values(#{name},#{money})")
    void saveAccount(Account account);

}

编写service层代码

@Service("accountService")
public class AccountServiceImpl implements AccountService {

    @Autowired
    @Qualifier("accountDao")
    private AccountDao accountDao;
    @Override
    public List findAll() {
        System.out.println("业务层，查询所有");
        return accountDao.findAll();
    }

    @Override
    public void saveAccount(Account account) {
        System.out.println("业务层，保存账户");
        accountDao.saveAccount(account);
    }
}

编写controller层代码

@Controller
@RequestMapping("/account")
public class AccountController{
    @Autowired
    private AccountService accountService;
    @RequestMapping("/findAll")
    public String findAll(Model model){
        System.out.println("表现层，查询所有账户。。。。。");
        List accounts = accountService.findAll();
        model.addAttribute("accounts",accounts);
        //调用业务层的方法
        return "list";
    }
    @RequestMapping("/save")
    public void saveAccount(Account account, HttpServletRequest request,HttpServletResponse response) throws IOException {
        System.out.println("表现层，保存账户。。。。。");
        accountService.saveAccount(account);
        //调用业务层的方法
        response.sendRedirect(request.getContextPath()+"/account/findAll");
    }

}

编写spring和mybatis的配置文件（合到一起）

编写SpringMVC的配置文件及Web.xml

web.xml:

  Archetype Created Web Application
  
  
    org.springframework.web.context.ContextLoaderListener
  
  
  
    contextConfigLocation
    classpath:applicationContext.xml
  
  
  
    dispatcherServlet
    org.springframework.web.servlet.DispatcherServlet
    
    
      contextConfigLocation
      classpath:springmvc.xml
    
    
    1
  
  
    dispatcherServlet
    /
  
  
 
   characterEncodingFilter
   org.springframework.web.filter.CharacterEncodingFilter
   
     encoding
     UTF-8
   
 
  
    characterEncodingFilter
    /*
  

编写index.js ， list.jsp ，success.jsp

index.jsp:

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


    


    测试查询所有用户
    


    
测试保存
    

        姓名：

        金额：

        


    

list.jsp:

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


    


    
查询所有账户成功
    
        ${account.name}
    

success.jsp:

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


    


    
成功页面