SSM 环境搭建

配置maven

新建环境变量MAVEN_HOME值为maven解压缩后的地址，往path中增加“%MAVEN_HOME%\bin”，打开控制台，输入命令mvn -v验证maven环境变量是否配置成功，如果能显示出maven版本则说明成功：

配置阿里云镜像源

在.m2下打开setting.xml找到其中的标签，并往标签中增加如下内容并保存即可：

新建项目

UserInfo.java

package test.bean;

public class UserInfo {
    public UserInfo() {
    
    }
    
    private int id;
    private String username;
    private String password;

    public int getId() {
        return id;
    }

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

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "UserInfo{" +
               "id=" + id +
               ", username='" + username + '\'' +
               ", password='" + password + '\'' +
            '}';
    }

}

UserInfoController.java

package test.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import test.bean.UserInfo;
import test.service.IUserInfoService;
import java.util.List;

@Controller
@RequestMapping("user")
public class UserInfoController{
    @Autowired
    IUserInfoService userInfoService;

    @RequestMapping("findAll.do")
    public ModelAndView findAll(){
        List users=userInfoService.findAll();
        ModelAndView mv=new ModelAndView();
        mv.addObject("users",users);
        mv.setViewName("allUser");
        return mv;
    }
}

IUserInfoDao.java

package test.dao;

import test.bean.UserInfo;
import java.util.List;

public interface IUserInfoDao {
     public List findAll();
}

IUserInfoService.java

package test.service;

import test.bean.UserInfo;
import java.util.List;

public interface IUserInfoService {
    public List findAll();
}

配置tomcat

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