JavaEE程序设计【十三】

发表于 更新于 分类于   |   字数统计: 2.9k(字)   |   阅读时长≈ 16(分)

SSM框架整合

1、流程分析

0.需求分析

1、构建数据库

2、大体框架编写

  • 各种文件夹

    • DAO层文件夹
    • POJO类文件夹
    • Service层文件夹
    • Controller层文件夹
    • JSP文件夹
    • 静态资源文件夹

  • 各种配置文件

    • Spring配置文件
    • SpringMVC配置文件
    • mybatis配置文件
    • web.xml
    • 数据库的properties
    • log4j的properties

3、配置文件填充

  1. pom.xml文件填充
  2. Spring配置文件填充
  3. SpringMVC配置文件填充
  4. mybatis配置文件填充

4、实现DAO层

  1. 实现全部POJO类

  2. 构建POJO类的各个Mapper接口和Mapper配置文件

    1
    2
    3
    4
    <?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="">
    </mapper>

  3. 在mybatis配置文件中配置mapper 使用自动扫描则不需要配置了

5、实现Service层

6、实现Controller层

7、实现view（前后端的交互）

2、常用配置

(1)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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
<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>
	<groupId>cn.edu.ccc</groupId>
	<artifactId>ch17</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>ch17 Maven Webapp</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<junit.version>4.12</junit.version>
		<spring.version>5.1.6.RELEASE</spring.version>
		<mybatis.version>3.5.0</mybatis.version>
		<mybatis.spring.version>2.0.0</mybatis.spring.version>
		<commons-dbcp.version>1.4</commons-dbcp.version>
		<jstl.version>1.2</jstl.version>
		<log4j.version>1.2.17</log4j.version>
		<fastjson.version>1.2.35</fastjson.version>
		<slf4j.version>1.7.25</slf4j.version>
		<jackson.version>2.9.8</jackson.version>
		<commons-fileupload.version>1.3.3</commons-fileupload.version>
		<commons-io.version>2.5</commons-io.version>
		<commons-codec.version>1.10</commons-codec.version>
		<aspectjweaver.version>1.8.10</aspectjweaver.version>
		<mysql.version>5.1.48</mysql.version>
		<commons-dbcp.version>2.7.0</commons-dbcp.version>
	</properties>

	<dependencies>
		<!-- Junit测试 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>${junit.version}</version>
			<scope>test</scope>
		</dependency>
		<!-- spring包 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</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-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- mybatis核心包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<!-- mybatis/spring包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>${mybatis.spring.version}</version>
		</dependency>
		<!-- 导入Mysql数据库链接jar包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>${mysql.version}</version>
		</dependency>
		<!-- 导入dbcp2的jar包，用来在applicationContext.xml中配置数据库 -->
		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-dbcp2</artifactId>
			<version>${commons-dbcp.version}</version>
		</dependency>
		<!-- JSTL标签类 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>${jstl.version}</version>
		</dependency>
		<!-- 日志文件管理包 -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>
		<!-- 格式化对象，方便输出日志 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>${fastjson.version}</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<!-- json和bean之间相互转换 -->
		<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.9.8</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-core</artifactId>
			<version>${jackson.version}</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-annotations</artifactId>
			<version>${jackson.version}</version>
		</dependency>
		<!-- 上传组件包 -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>${commons-fileupload.version}</version>
		</dependency>
		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>${commons-io.version}</version>
		</dependency>
		<dependency>
			<groupId>commons-codec</groupId>
			<artifactId>commons-codec</artifactId>
			<version>${commons-codec.version}</version>
		</dependency>
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>${aspectjweaver.version}</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
		<dependency>
			<groupId>org.mybatis.generator</groupId>
			<artifactId>mybatis-generator-core</artifactId>
			<version>1.4.0</version>
		</dependency>
	</dependencies>
	<build>
		<finalName>ch17</finalName>
		<pluginManagement><!-- lock down plugins versions to avoid using Maven 
				defaults (may be moved to parent pom) -->
			<plugins>
				<plugin>
					<artifactId>maven-clean-plugin</artifactId>
					<version>3.1.0</version>
				</plugin>
				<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
				<plugin>
					<artifactId>maven-resources-plugin</artifactId>
					<version>3.0.2</version>
				</plugin>
				<plugin>
					<groupId>org.apache.maven.plugins</groupId>
					<artifactId>maven-compiler-plugin</artifactId>
					<version>3.8.0</version>
					<configuration>
						<source>1.8</source>
						<target>1.8</target>
					</configuration>
				</plugin>
				<plugin>
					<artifactId>maven-surefire-plugin</artifactId>
					<version>2.22.1</version>
				</plugin>
				<plugin>
					<artifactId>maven-war-plugin</artifactId>
					<version>3.2.2</version>
				</plugin>
				<plugin>
					<artifactId>maven-install-plugin</artifactId>
					<version>2.5.2</version>
				</plugin>
				<plugin>
					<artifactId>maven-deploy-plugin</artifactId>
					<version>2.8.2</version>
				</plugin>
			</plugins>
		</pluginManagement>
	</build>
</project>

(2)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
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  	xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
  	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 
  	http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
  	id="WebApp_ID" version="3.1">
  	<!-- 配置加载Spring文件的监听器-->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	<listener>
		<listener-class>
		     org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>
	<!-- 编码过滤器 -->
	<filter>
		<filter-name>encoding</filter-name>
		<filter-class>
		     org.springframework.web.filter.CharacterEncodingFilter
		</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>		
	</filter>
	<filter-mapping>
		<filter-name>encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<!-- 配置Spring MVC前端核心控制器 -->
	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>
		     org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springmvc-config.xml</param-value>
		</init-param>
		<!-- 配置服务器启动后立即加载Spring MVC配置文件 -->
    	<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<!--/:拦截所有请求（除了jsp）-->
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

(3)Spring配置文件

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
<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop.xsd">
    
	<!-- 读取db.properties -->
	<context:property-placeholder	location="classpath:db.properties" />
	<!-- 配置数据源 -->
	<bean id="dataSource"	class="org.apache.commons.dbcp2.BasicDataSource">
		<!--数据库驱动 -->
		<property name="driverClassName" value="${jdbc.driver}" />
		<!--连接数据库的url -->
		<property name="url" value="${jdbc.url}" />
		<!--连接数据库的用户名 -->
		<property name="username" value="${jdbc.username}" />
		<!--连接数据库的密码 -->
		<property name="password" value="${jdbc.password}" />
		<!--最大连接数 -->
		<property name="maxTotal" value="${jdbc.maxTotal}" />
		<!--最大空闲连接 -->
		<property name="maxIdle" value="${jdbc.maxIdle}" />
		<!--初始化连接数 -->
		<property name="initialSize" value="${jdbc.initialSize}" />
	</bean>
	<!-- 事务管理器，依赖于数据源 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>
	<!-- 开启事务注解 -->
	<tx:annotation-driven	transaction-manager="transactionManager" />
	<!-- 配置MyBatis工厂SqlSessionFactory -->
	<bean id="sqlSessionFactory"	class="org.mybatis.spring.SqlSessionFactoryBean">
		<!--注入数据源 -->
		<property name="dataSource" ref="dataSource" />
		<!--指定核MyBatis心配置文件位置 -->
		<property name="configLocation"	value="classpath:mybatis-config.xml" />
	</bean>
	
	<!-- 配置mapper扫描器 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="cn.edu.ccc.ch17.dao" />
	</bean>
	
	<!-- 扫描Service -->
	<context:component-scan	base-package="cn.edu.ccc" />
</beans>

(4)SpringMVC配置文件

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xmlns:mvc="http://www.springframework.org/schema/mvc"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans.xsd 
  http://www.springframework.org/schema/mvc 
  http://www.springframework.org/schema/mvc/spring-mvc.xsd 
  http://www.springframework.org/schema/context 
  http://www.springframework.org/schema/context/spring-context.xsd">  
	<!-- 配置包扫描器，扫描@Controller注解的类 --> 
	<context:component-scan base-package="cn.edu.ccc" />
	<!-- 加载注解驱动 -->
	<mvc:annotation-driven />  
	<!-- 配置视图解析器 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
	
</beans>

(5)Mybatis配置文件

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
<?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>
		<!-- 打开延迟加载的开关 -->
		<setting name="lazyLoadingEnabled" value="false" />
		<!-- 将积极加载改为消息加载，即按需加载 -->
		<setting name="aggressiveLazyLoading" value="true" />
		<setting name="mapUnderscoreToCamelCase" value="true" />
		<setting name="logImpl" value="STDOUT_LOGGING" />
	</settings>
	<!-- 别名定义 -->
	<typeAliases>
		<package name="cn.edu.ccc.ch17.dao" />
	</typeAliases>
</configuration>

(6)数据库properties

1
2
3
4
5
6
7
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf-8
jdbc.username=root
jdbc.password=mysql
jdbc.maxTotal=30
jdbc.maxIdle=10
jdbc.initialSize=5

(7)log4J的properties

1
2
3
4
5
6
7
8
# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.itheima=DEBUG
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
-----------------------本文结束 感谢阅读-----------------------
坚持原创技术分享，您的支持将鼓励我继续创作！恰饭^.^~