SSM框架整合

发表于 阅读次数：
本文字数： 13k 阅读时长 ≈ 12 分钟

ssm框架流程图

SSM框架整合

Spring + Spring MVC + MyBatis

Spring MVC 负责实现 MVC 设计模式、MyBatis 负责数据持久层、Spring 负责管理 Spring MVC 和 MyBatis 相关对象的创建和依赖注入

整合流程

  • pom.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>
  <packaging>war</packaging>

  <name>ssmintegration</name>
  <groupId>com.dream.xiaobo</groupId>
  <artifactId>ssmintegration</artifactId>
  <version>1.0-SNAPSHOT</version>

  <build>

<!--    IDEA开发工具需要手动配置扫描路径、如果用Eclipse则不需要配置-->
    <resources>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
        </includes>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.xml</include>
          <include>**/*.properties</include>
        </includes>
      </resource>
    </resources>

    <plugins>
      <plugin>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>maven-jetty-plugin</artifactId>
        <version>6.1.7</version>
        <configuration>
          <connectors>
            <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
              <port>8888</port>
              <maxIdleTime>30000</maxIdleTime>
            </connector>
          </connectors>
          <webAppSourceDirectory>${project.build.directory}/${pom.artifactId}-${pom.version}</webAppSourceDirectory>
          <contextPath>/</contextPath>
        </configuration>
      </plugin>
    </plugins>
  </build>

  <dependencies>
    <!--dependency>
      <groupId>com.dream.xiaobo</groupId>
      <artifactId>[the artifact id of the block to be mounted]</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency-->

<!--    spring mvc-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.0.11.RELEASE</version>
    </dependency>

<!--    spring  jdbc-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.0.11.RELEASE</version>
    </dependency>

<!--    spring aop-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>5.0.11.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>5.0.11.RELEASE</version>
    </dependency>

<!--    mybatis-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.5</version>
    </dependency>

<!--    mybatis整合spring-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>

<!--    mysql-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.11</version>
    </dependency>

<!--    C3P0-->
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
    </dependency>

<!--    JSTL标签库-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>

    <!-- ServletAPI -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>

<!--    lombok   不是必要的、简写set和get方法-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.6</version>
      <scope>provided</scope>
    </dependency>

  </dependencies>

</project>
  • web.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
         xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<!--  启动sprign-->
  <context-param>
<!--    全局初始化-->
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

<!--  配置spring mvc-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--    spring mvc初始化-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
  </servlet>

<!--  接受所有请求到DispatcherServlet-->
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

<!--  字符编码过滤器-->
  <filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<!--    过滤器初始化-->
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
<!--  拦截所有请求-->
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

<!--  加载静态资源-->
  <servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.js</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.css</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.png</url-pattern>
  </servlet-mapping>

</web-app>

web.xml 中配置一些 SpringMVC、Spring、字符编码过滤器、加载静态资源

  • spring.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
">
    <!--    整合Mybatis-->
    <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="root" />
        <property name="password" value="xiaobo" />
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/db_mybatis?useUnicode=true&amp;charcaterEncodeing=UTF-8&amp;serverTimezone=UTC" />
        <property name="driverClass" value="com.mysql.cj.jdbc.Driver" />
        <property name="initialPoolSize" value="5" />
        <property name="maxPoolSize" value="10" />
    </bean>

    <!--    配置Mybatis 的SqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--        读取数据源-->
        <property name="dataSource" ref="dataSource"></property>
<!--        读取mapper.xml-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
        <!--        读取mybatis-config.xml配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
    </bean>

    <!-- 扫描自定义的Mapper接口 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.dream.xiaobo.dao" />
    </bean>
</beans>

在 spring.xml 中配置 MyBatis 和 Spring 的整合

  • spring-mvc.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    <!-- 启动注解驱动 -->
    <mvc:annotation-driven></mvc:annotation-driven>

    <!-- 扫描业务代码 -->
    <context:component-scan base-package="com.dream.xiaobo"></context:component-scan>

    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>
  • mybatis-config.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <settings>
        <!-- 打印SQL-->
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>

    <typeAliases>
        <!-- 指定一个包名，MyBatis会在包名下搜索需要的JavaBean-->
        <package name="com.southwind.entity"/>
    </typeAliases>

</configuration>

config.xml 配置一些 MyBatis 辅助信息、比如打印 SQL 等

  • entity
1
2
3
4
5
6
7
@Data
public class User {

    private Integer id;
    private String username;
    private String password;
}
  • dao
1
2
3
public interface UserRepository {
    public List<User> findAll();
}
  • mapper
1
2
3
4
5
6
7
8
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.dream.xiaobo.dao.UserRepository">
    <select id="findAll" resultType="com.dream.xiaobo.entity.User">
        SELECT * FROM user
    </select>
</mapper>
  • service
1
2
3
public interface UserService {
    public List<User> findAll();
}
  • serviceImpl
1
2
3
4
5
6
7
8
9
10
@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserRepository userRepository;

    public List<User> findAll() {
        return userRepository.findAll();
    }
}
  • controller
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
@Controller
@RequestMapping(value = "/user")
public class UserController {

    @Autowired
    private UserServiceImpl userService;

    @RequestMapping(value = "/findAll")
    public ModelAndView findAll(){

        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("index");
        modelAndView.addObject("list",userService.findAll());

        return modelAndView;
    }
}
  • index.jsp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page isELIgnored="false" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <c:forEach items="${list }" var="user">
        ${user.id}
        ${user.username}
        ${user.password}<br/>
    </c:forEach>
</body>
</html>

db
db
运行结果
index
流程图示分析
ssm框架流程图

正确的开始、微小的长进、然后持续、嘿、我是小博、带你一起看我目之所及的世界……

-------------本文结束 感谢您的阅读-------------

本文标题:SSM框架整合

文章作者:小博

发布时间:2021年07月17日 - 13:43

最后更新:2021年07月17日 - 13:46

原始链接:https://codexiaobo.github.io/posts/3554612912/

许可协议: 署名-非商业性使用-禁止演绎 4.0 国际 转载请保留原文链接及作者。