SSM搭建-第一章：搭建整合环境

第一章：搭建整合环境

1.搭建整合环境

1. 整合说明：

        SSM整合可以使用多种方式，咱们会选择XML + 注解的方式

2. 整合的思路

                1. 先搭建整合的环境

                2. 先把Spring的配置搭建完成

                3. 再使用Spring整合SpringMVC框架

                4. 最后使用Spring整合MyBatis框架

                3. 创建数据库和表结构

3. 在Navicat里创建ssm数据库以及创建account表语句

create database ssm;
create table account(
id int primary key auto_increment,
name varchar(20),
money double
);

 

4. 创建maven的工程

创建webapp项目为SSMDao。

把pom里该清理的删除，里面需要搭建很多东西。

把maven相关的jar包导入。

<properties>
  <spring.version>5.0.2.RELEASE</spring.version>
  <slf4j.version>1.6.6</slf4j.version>
  <log4j.version>1.2.12</log4j.version>
  <mysql.version>5.1.6</mysql.version>
  <mybatis.version>3.4.5</mybatis.version>
  <jackson.version>2.9.4</jackson.version>
</properties>
<dependencies>
  <!--spring-->
  <dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.6.8</version>
  </dependency>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aop</artifactId>
    <version>${spring.version}</version>
  </dependency><dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>${spring.version}</version>
</dependency>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>${spring.version}</version>
  </dependency>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>${spring.version}</version>
  </dependency>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
    <version>${spring.version}</version>
  </dependency>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-tx</artifactId>
    <version>${spring.version}</version>
  </dependency>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>${spring.version}</version>
  </dependency>
  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>test</scope>
  </dependency>
  <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>${mysql.version}</version>
  </dependency>
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>2.5</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>javax.servlet.jsp</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
  </dependency>
  <!--log start-->
  <dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>${log4j.version}</version>
  </dependency>
  <dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j.version}</version>
  </dependency>
  <dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>${slf4j.version}</version>
  </dependency>
  <!-- log end-->
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>${mybatis.version}</version>
  </dependency>
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.0</version>
  </dependency>
  <!--连接池-->
  <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version></dependency>
  <dependency>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-core</artifactId>
    <version>1.3.5</version>
  </dependency>
  <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>${jackson.version}</version>
  </dependency>
  <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>${jackson.version}</version>
  </dependency>
  <dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>
    <version>5.1.10</version>
  </dependency>
  <dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.2.3</version>
  </dependency>
  <dependency>
      <groupId>org.thymeleaf</groupId>
      <artifactId>thymeleaf-spring4</artifactId>
      <version>3.0.9.RELEASE</version>
  </dependency>
</dependencies>
<build>
  <finalName>ssm</finalName>
  <pluginManagement>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.2</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
          <encoding>UTF-8</encoding>
          <showWarnings>true</showWarnings>
        </configuration>
      </plugin>
    </plugins>
  </pluginManagement>
  <plugins>
    <plugin>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-maven-plugin</artifactId>
      <version>1.3.5</version>
      <!--告诉插件，配置文件所在的位置-->
      <configuration>
        <configurationFile>src/main/resources/mbg.xml</configurationFile>
        <verbose>true</verbose>
        <overwrite>true</overwrite>
      </configuration>
    </plugin>
  </plugins>
</build>

之后把main里的目录java和resources创建出：

 接着在java目录里的建几个软件包entity，service

5.在entity编写实体类：

package com.qcby.entity;

import java.io.Serializable;

public class Account implements Serializable {
    // 主键
    private int id;
    // 账户名称
    private String name;
    // 账号的金额
    private Double money;

    public int getId() {
        return id;
    }
    public void setId(int 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 +
                '}';
    }
}

6.在service里先建一个叫AccountService的接口

package com.qcby.service;

import com.qcby.entity.Account;
import java.util.List;

public interface AccountService {

    //查询所有
    public List<Account> findAll();
}

7.在impl软件包里建一个实现类

实现AccountService,这一层就是业务层

package com.qcby.service;

import com.qcby.entity.Account;
import org.springframework.stereotype.Service;
import java.util.List;

@Service //业务层
public class AccountServiceImpl implements AccountService {
    //查询所有
    @Override
    public List<Account> findAll() {
        System.out.println("业务层：查询所有");
        return null;
    }
}