简单的ssm项目搭建

mysql数据库中的数据，想通过web的页面展示，有多种方式，可以通过python的django，java的ssm，现在接触java多些，这章就利用ssm框架搭建一个web

首先准备一个mysql数据库

接着准备ssm框架，包含四个domain、dao、service、web 模块进行搭建

domain准备javabean接收数据数据，需要保证mysql字段与javabean字段名一样

package com.hacker.ssm;

import java.util.Date;

public class Student {
    private Integer id;
    private String name;
    private Integer age;
    private Float high;
    private String gender;
    private Date birth;


    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 Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public Float getHigh() {
        return high;
    }

    public void setHigh(Float high) {
        this.high = high;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public Date getBirth() {
        return birth;
    }

    public void setBirth(Date birth) {
        this.birth = birth;
    }
}

dao层就是准备mybatis要映射的接口

package com.hacker.ssm.dao;
import com.hacker.ssm.Student;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Component;

import java.util.List;
@Component
public interface IStudentDao {

    @Select("select * from students")
    List<Student> findAll() throws Exception;

}

service层对数据进行处理操作

package com.hacker.ssm.service;

import com.hacker.ssm.Student;

import java.util.List;

public interface IStudentService {

    List<Student> findAll() throws Exception;
}

package com.hacker.ssm.service.impl;

import com.hacker.ssm.Student;
import com.hacker.ssm.dao.IStudentDao;
import com.hacker.ssm.service.IStudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class IStudentServiceImpl implements IStudentService {
    @Autowired
    private IStudentDao StudentDao;

    public List<Student> findAll() throws Exception {
        return StudentDao.findAll();
    }
}

web层执行controller业务流程操作

package com.hacker.ssm.controller;


import com.hacker.ssm.Student;
import com.hacker.ssm.service.IStudentService;
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 java.util.List;

@Controller
@RequestMapping(path="/student")
public class StudentInfoController {

    @Autowired
    private IStudentService StudentService;

    @RequestMapping(path="/findAll.do")
    public ModelAndView finAll() throws Exception{
        ModelAndView mv=new ModelAndView();
        List<Student> all = StudentService.findAll();
        for (int i = 0; i <all.size() ; i++) {
            System.out.println(all.get(i).getName());
        }
        mv.addObject("studentinfo",all);
        mv.setViewName("student");
        return mv;

    }


}

成功访问数据

http://localhost:8888/hacker_ssm_web1/student/findAll.do

源代码：https://github.com/porterOne/hacker_ssm_practice01