完整搭建SSM框架之黑暗中的摸索

Posted 2020-09-10

JavaWeb基础该学的都了解过一点了，那么必须要在项目中来练习和升华了（就像高三对数理化的整合练习！）

一共分为三个步骤：

1.环境的选择和准备

2.工程的创建

3.代码和配置文件的创建

• 环境

 

 

 

 

 

 

 

• 工程创建

 

在pom.xml文件中加入依赖包（去除index.jsp的报错）

<!-- 导入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>

搞成如下图的样子：

然后，再到属性里边来。调整发布的配置。

• 代码填入

 jar包版本：Spring 4.0.2 RELEASE、Spring MVC 4.0.2 RELEASE、MyBatis 3.2.6

 pom.xml文件中的所有jar包：（ctrl+s后会自动引入jar包）

  1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  3   <modelVersion>4.0.0</modelVersion>
  4   <groupId>com.tydic</groupId>
  5   <artifactId>testSSM3</artifactId>
  6   <packaging>war</packaging>
  7   <version>0.0.1-SNAPSHOT</version>
  8   <name>testSSM3 Maven Webapp</name>
  9   <url>http://maven.apache.org</url>
 10   <properties>  
 11       <!-- spring版本号 -->  
 12       <spring.version>4.0.2.RELEASE</spring.version>  
 13       <!-- mybatis版本号 -->  
 14       <mybatis.version>3.2.6</mybatis.version>  
 15       <!-- log4j日志文件管理包版本 -->  
 16       <slf4j.version>1.7.7</slf4j.version>  
 17       <log4j.version>1.2.17</log4j.version>  
 18   </properties>  
 19   
 20    <dependencies>
 21        <dependency>
 22       <groupId>junit</groupId>
 23       <artifactId>junit</artifactId>
 24       <version>3.8.1</version>
 25       <scope>test</scope>
 26     </dependency>
 27     
 28     <!-- 导入java ee jar 包 -->  
 29     <dependency>  
 30       <groupId>javax</groupId>  
 31       <artifactId>javaee-api</artifactId>  
 32       <version>7.0</version>  
 33     </dependency>
 34     
 35     <dependency>  
 36         <groupId>junit</groupId>  
 37         <artifactId>junit</artifactId>  
 38         <version>4.11</version>  
 39         <!-- 表示开发的时候引入，发布的时候不会加载此包 -->  
 40         <scope>test</scope>  
 41     </dependency>  
 42     <!-- spring核心包 -->  
 43     <dependency>  
 44         <groupId>org.springframework</groupId>  
 45         <artifactId>spring-core</artifactId>  
 46         <version>${spring.version}</version>  
 47     </dependency>  
 48 
 49     <dependency>  
 50         <groupId>org.springframework</groupId>  
 51         <artifactId>spring-web</artifactId>  
 52         <version>${spring.version}</version>  
 53     </dependency>  
 54     <dependency>  
 55         <groupId>org.springframework</groupId>  
 56         <artifactId>spring-oxm</artifactId>  
 57         <version>${spring.version}</version>  
 58     </dependency>
 59     <dependency>
 60         <groupId>org.springframework</groupId>
 61         <artifactId>spring-orm</artifactId>
 62         <version>${spring.version}</version>
 63     </dependency>
 64     <dependency>  
 65         <groupId>org.springframework</groupId>  
 66         <artifactId>spring-tx</artifactId>  
 67         <version>${spring.version}</version>  
 68     </dependency>  
 69 
 70     <dependency>  
 71         <groupId>org.springframework</groupId>  
 72         <artifactId>spring-jdbc</artifactId>  
 73         <version>${spring.version}</version>  
 74     </dependency>  
 75 
 76     <dependency>  
 77         <groupId>org.springframework</groupId>  
 78         <artifactId>spring-webmvc</artifactId>  
 79         <version>${spring.version}</version>  
 80     </dependency>  
 81     <dependency>  
 82         <groupId>org.springframework</groupId>  
 83         <artifactId>spring-aop</artifactId>  
 84         <version>${spring.version}</version>  
 85     </dependency>  
 86 
 87     <dependency>  
 88         <groupId>org.springframework</groupId>  
 89         <artifactId>spring-context-support</artifactId>  
 90         <version>${spring.version}</version>  
 91     </dependency>
 92     
 93     <dependency>
 94         <groupId>org.springframework</groupId>
 95         <artifactId>spring-context</artifactId>
 96         <version>${spring.version}</version>
 97     </dependency>
 98     
 99     <dependency>
100         <groupId>org.springframework</groupId>
101         <artifactId>spring-beans</artifactId>
102         <version>${spring.version}</version>
103     </dependency>
104 
105     <dependency>  
106         <groupId>org.springframework</groupId>  
107         <artifactId>spring-test</artifactId>  
108         <version>${spring.version}</version>  
109     </dependency>  
110     <!-- mybatis核心包 -->  
111     <dependency>  
112         <groupId>org.mybatis</groupId>  
113         <artifactId>mybatis</artifactId>  
114         <version>${mybatis.version}</version>  
115     </dependency>  
116     <!-- mybatis/spring包 -->  
117     <dependency>  
118         <groupId>org.mybatis</groupId>  
119         <artifactId>mybatis-spring</artifactId>  
120         <version>1.2.2</version>  
121     </dependency>  
122     <!-- 导入java ee jar 包 -->  
123     <dependency>  
124         <groupId>javax</groupId>  
125         <artifactId>javaee-api</artifactId>  
126         <version>7.0</version>  
127     </dependency>  
128     <!-- 导入mysql数据库链接jar包 -->  
129     <dependency>  
130         <groupId>mysql</groupId>  
131         <artifactId>mysql-connector-java</artifactId>  
132         <version>5.1.30</version>  
133     </dependency>  
134     <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->  
135     <dependency>  
136         <groupId>commons-dbcp</groupId>  
137         <artifactId>commons-dbcp</artifactId>  
138         <version>1.2.2</version>  
139     </dependency>  
140     <!-- JSTL标签类 -->  
141     <dependency>  
142         <groupId>jstl</groupId>  
143         <artifactId>jstl</artifactId>  
144         <version>1.2</version>  
145     </dependency>  
146     <!-- 日志文件管理包 -->  
147     <!-- log start -->  
148     <dependency>  
149         <groupId>log4j</groupId>  
150         <artifactId>log4j</artifactId>  
151         <version>${log4j.version}</version>  
152     </dependency>  
153       
154       
155     <!-- 格式化对象，方便输出日志 -->  
156     <dependency>  
157         <groupId>com.alibaba</groupId>  
158         <artifactId>fastjson</artifactId>  
159         <version>1.1.41</version>  
160     </dependency>
161     
162     <dependency>
163         <groupId>com.tydic.framework</groupId>
164         <artifactId>fw-log</artifactId>
165         <version>1.4</version>
166     </dependency> 
167 
168     <dependency>  
169         <groupId>org.slf4j</groupId>  
170         <artifactId>slf4j-api</artifactId>  
171         <version>${slf4j.version}</version>  
172     </dependency>
173     
174     <dependency>
175         <groupId>org.aspectj</groupId>
176         <artifactId>aspectjweaver</artifactId>
177         <version>1.7.4</version>
178     </dependency>
179 
180     <dependency>  
181         <groupId>org.slf4j</groupId>  
182         <artifactId>slf4j-log4j12</artifactId>  
183         <version>${slf4j.version}</version>  
184     </dependency>  
185     <!-- log end -->  
186     <!-- 映入JSON -->  
187     <dependency>  
188         <groupId>org.codehaus.jackson</groupId>  
189         <artifactId>jackson-mapper-asl</artifactId>  
190         <version>1.9.13</version>  
191     </dependency>  
192     <!-- 上传组件包 -->  
193     <dependency>  
194         <groupId>commons-fileupload</groupId>  
195         <artifactId>commons-fileupload</artifactId>  
196         <version>1.3.1</version>  
197     </dependency>  
198     <dependency>  
199         <groupId>commons-io</groupId>  
200         <artifactId>commons-io</artifactId>  
201         <version>2.4</version>  
202     </dependency>  
203     <dependency>  
204         <groupId>commons-codec</groupId>  
205         <artifactId>commons-codec</artifactId>  
206         <version>1.9</version>  
207     </dependency>
208     
209     <dependency>
210         <groupId>com.tydic.framework</groupId>
211         <artifactId>fw-lang</artifactId>
212         <version>1.4</version>
213     </dependency>
214     
215     <dependency>
216         <groupId>commons-beanutils</groupId>
217         <artifactId>commons-beanutils</artifactId>
218         <version>1.8.1</version>
219     </dependency>
220     
221     <dependency>
222                <groupId>joda-time</groupId>
223                <artifactId>joda-time</artifactId>
224                <version>2.1</version>
225            </dependency>
226            
227     <dependency>
228                <groupId>org.slf4j</groupId>
229                <artifactId>jcl-over-slf4j</artifactId>
230                <version>1.7.6</version>
231            </dependency>
232            
233     <dependency>
234                <groupId>org.apache.commons</groupId>
235                <artifactId>commons-lang3</artifactId>
236                <version>3.1</version>
237            </dependency>
238            
239     <dependency>
240                <groupId>javax.annotation</groupId>
241                <artifactId>javax.annotation-api</artifactId>
242                <version>1.2</version>
243            </dependency>
244          
245    </dependencies>
246   <build>
247     <finalName>testSSM3</finalName>
248   </build>
249 </project>

spring和mybatis的整合

jdbc.properties（注意行末不要有空格）

 1 driver=com.mysql.jdbc.Driver
 2 #貌似也可以用自己的ip地址
 3 url=jdbc:mysql://127.0.0.1:3306/chenyu_db
 4 username=root
 5 password=
 6 #定义初始连接数  
 7 initialSize=0
 8 #定义最大连接数  
 9 maxActive=20
10 #定义最大空闲  
11 maxIdle=20
12 #定义最小空闲  
13 minIdle=1
14 #定义最长等待时间  
15 maxWait=60000

log4j.properties

 1 log4j.rootLogger=INFO,Console,File
 2 #定义日志输出目的地为控制台  
 3 log4j.appender.Console=org.apache.log4j.ConsoleAppender
 4 log4j.appender.Console.Target=System.out
 5 #可以灵活地指定日志输出格式，下面一行是指定具体的格式  
 6 log4j.appender.Console.layout = org.apache.log4j.PatternLayout
 7 log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
 8 
 9 #文件大小到达指定尺寸的时候产生一个新的文件  
10 log4j.appender.File = org.apache.log4j.RollingFileAppender
11 #指定输出目录  
12 log4j.appender.File.File = logs/ssm.log
13 #定义文件最大大小  
14 log4j.appender.File.MaxFileSize = 10MB
15 # 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志  
16 log4j.appender.File.Threshold = ALL
17 log4j.appender.File.layout = org.apache.log4j.PatternLayout
18 log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\\:mm\\:ss}][%c]%m%n

spring-mvc.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns="http://www.springframework.org/schema/beans"  
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"  
 4     xmlns:context="http://www.springframework.org/schema/context"  
 5     xmlns:mvc="http://www.springframework.org/schema/mvc"  
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans    
 7                         http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
 8                         http://www.springframework.org/schema/context    
 9                         http://www.springframework.org/schema/context/spring-context-3.1.xsd    
10                         http://www.springframework.org/schema/mvc    
11                         http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  
12     <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->  
13     <context:component-scan base-package="com.tydic.controller" />  
14     <!--避免IE执行AJAX时，返回JSON出现下载文件 -->  
15     <bean id="mappingJacksonHttpMessageConverter"  
16         class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">  
17         <property name="supportedMediaTypes">  
18             <list>  
19                 <value>text/html;charset=UTF-8</value>  
20             </list>  
21         </property>  
22     </bean>  
23     <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->  
24     <bean  
25         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">  
26         <property name="messageConverters">  
27             <list>  
28                 <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->  
29             </list>  
30         </property>  
31     </bean>  
32     <!-- 定义跳转的文件的前后缀 ，视图模式配置-->  
33     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
34         <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->  
35         <property name="prefix" value="/WEB-INF/jsp/" />  
36         <property name="suffix" value=".jsp" />  
37     </bean>  
38       
39     <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->  
40     <bean id="multipartResolver"    
41         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    
42         <!-- 默认编码 -->  
43         <property name="defaultEncoding" value="utf-8" />    
44         <!-- 文件大小最大值 -->  
45         <property name="maxUploadSize" value="10485760000" />    
46         <!-- 内存中的最大值 -->  
47         <property name="maxInMemorySize" value="40960" />    
48     </bean>   
49   
50 </beans>

spring-mybatis.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns="http://www.springframework.org/schema/beans"  
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"  
 4     xmlns:context="http://www.springframework.org/schema/context"  
 5     xmlns:mvc="http://www.springframework.org/schema/mvc"  
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans    
 7                         http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
 8                         http://www.springframework.org/schema/context    
 9                         http://www.springframework.org/schema/context/spring-context-3.1.xsd    
10                         http://www.springframework.org/schema/mvc    
11                         http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  
12     <!-- 自动扫描 -->  
13     <context:component-scan base-package="com.tydic" />
14     <!-- 引入配置文件 -->  
15     <bean id="propertyConfigurer"  
16         class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
17         <property name="location" value="classpath:jdbc.properties" />  
18     </bean>  
19   
20     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
21         destroy-method="close">  
22         <property name="driverClassName" value="${driver}" />  
23         <property name="url" value="${url}" />  
24         <property name="username" value="${username}" />  
25         <property name="password" value="${password}" />  
26         <!-- 初始化连接大小 -->  
27         <property name="initialSize" value="${initialSize}"></property>  
28         <!-- 连接池最大数量 -->  
29         <property name="maxActive" value="${maxActive}"></property>  
30         <!-- 连接池最大空闲 -->  
31         <property name="maxIdle" value="${maxIdle}"></property>  
32         <!-- 连接池最小空闲 -->  
33         <property name="minIdle" value="${minIdle}"></property>  
34         <!-- 获取连接最大等待时间 -->  
35         <property name="maxWait" value="${maxWait}"></property>  
36     </bean>  
37   
38     <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->  
39     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
40         <property name="dataSource" ref="dataSource" />  
41         <!-- 自动扫描mapping.xml文件 -->  
42         <property name="mapperLocations" value="classpath:com/tydic/mapping/*.xml"></property>  
43     </bean>  
44   
45     <!-- DAO接口所在包名，Spring会自动查找其下的类 -->  
46     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
47         <property name="basePackage" value="com.tydic.dao" />  
48         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
49     </bean>
50   
51     <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->  
52     <bean id="transactionManager"  
53         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
54         <property name="dataSource" ref="dataSource" />  
55     </bean>  
56   
57 </beans>

开启mysql数据库

创建表和数据

 1 DROP TABLE IF EXISTS `user_t`;  
 2   
 3 CREATE TABLE `user_t` (  
 4   `id` int(11) NOT NULL AUTO_INCREMENT,  
 5   `user_name` varchar(40) NOT NULL,  
 6   `password` varchar(255) NOT NULL,  
 7   `age` int(4) NOT NULL,  
 8   PRIMARY KEY (`id`)  
 9 ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;  
10   
11 /*Data for the table `user_t` */  
12   
13 insert  into `user_t`(`id`,`user_name`,`password`,`age`) values (1,‘测试‘,‘sfasgfaf‘,24);

完成了Spring和mybatis的整合，开始JUnit测试

利用MyBatis Generator自动创建代码http://blog.csdn.net/zhshulin/article/details/23912615。总之代码如下

UserMapper.xml

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 3 <mapper namespace="com.tydic.dao.IUserDao" >
 4   <resultMap id="BaseResultMap" type="com.tydic.domain.User" >
 5     <id column="id" property="id" jdbcType="INTEGER" />
 6     <result column="user_name" property="userName" jdbcType="VARCHAR" />
 7     <result column="password" property="password" jdbcType="VARCHAR" />
 8     <result column="age" property="age" jdbcType="INTEGER" />
 9   </resultMap>
10   <sql id="Base_Column_List" >
11     id, user_name, password, age
12   </sql>
13   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
14     select 
15     <include refid="Base_Column_List" />
16     from user_t
17     where id = #{id,jdbcType=INTEGER}
18   </select>
19   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
20     delete from user_t
21     where id = #{id,jdbcType=INTEGER}
22   </delete>
23   <insert id="insert" parameterType="com.tydic.domain.User" >
24     insert into user_t (id, user_name, password, 
25       age)
26     values (#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, 
27       #{age,jdbcType=INTEGER})
28   </insert>
29   <insert id="insertSelective" parameterType="com.tydic.domain.User" >
30     insert into user_t
31     <trim prefix="(" suffix=")" suffixOverrides="," >
32       <if test="id != null" >
33         id,
34       </if>
35       <if test="userName != null" >
36         user_name,
37       </if>
38       <if test="password != null" >
39         password,
40       </if>
41       <if test="age != null" >
42         age,
43       </if>
44     </trim>
45     <trim prefix="values (" suffix=")" suffixOverrides="," >
46       <if test="id != null" >
47         #{id,jdbcType=INTEGER},
48       </if>
49       <if test="userName != null" >
50         #{userName,jdbcType=VARCHAR},
51       </if>
52       <if test="password != null" >
53         #{password,jdbcType=VARCHAR},
54       </if>
55       <if test="age != null" >
56         #{age,jdbcType=INTEGER},
57       </if>
58     </trim>
59   </insert>
60   <update id="updateByPrimaryKeySelective" parameterType="com.tydic.domain.User" >
61     update user_t
62     <set >
63       <if test="userName != null" >
64         user_name = #{userName,jdbcType=VARCHAR},
65       </if>
66       <if test="password != null" >
67         password = #{password,jdbcType=VARCHAR},
68       </if>
69       <if test="age != null" >
70         age = #{age,jdbcType=INTEGER},
71       </if>
72     </set>
73     where id = #{id,jdbcType=INTEGER}
74   </update>
75   <update id="updateByPrimaryKey" parameterType="com.tydic.domain.User" >
76     update user_t
77     set user_name = #{userName,jdbcType=VARCHAR},
78       password = #{password,jdbcType=VARCHAR},
79       age = #{age,jdbcType=INTEGER}
80     where id = #{id,jdbcType=INTEGER}
81   </update>
82 </mapper>

User.java

 1 package com.tydic.domain;
 2 
 3 public class User {
 4     private Integer id;
 5 
 6     private String userName;
 7 
 8     private String password;
 9 
10     private Integer age;
11 
12     public Integer getId() {
13         return id;
14     }
15 
16     public void setId(Integer id) {
17         this.id = id;
18     }
19 
20     public String getUserName() {
21         return userName;
22     }
23 
24     public void setUserName(String userName) {
25         this.userName = userName == null ? null : userName.trim();
26     }
27 
28     public String getPassword() {
29         return password;
30     }
31 
32     public void setPassword(String password) {
33         this.password = password == null ? null : password.trim();
34     }
35 
36     public Integer getAge() {
37         return age;
38     }
39 
40     public void setAge(Integer age) {
41         this.age = age;
42     }
43 }

IUserDao.java

 1 package com.tydic.dao;
 2 
 3 import com.tydic.domain.User;
 4 
 5 public interface IUserDao {
 6     int deleteByPrimaryKey(Integer id);
 7 
 8     int insert(User record);
 9 
10     int insertSelective(User record);
11 
12     User selectByPrimaryKey(Integer id);
13 
14     int updateByPrimaryKeySelective(User record);
15 
16     int updateByPrimaryKey(User record);
17 }

IUserService.java

1 package com.tydic.service;
2 
3 import com.tydic.domain.User;
4 
5 public interface IUserService {
6     public User getUserById(int userId);
7 }

UserServiceImpl.java

 1 package com.tydic.service.impl;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import org.springframework.stereotype.Service;
 6 
 7 import com.tydic.dao.IUserDao;
 8 import com.tydic.domain.User;
 9 import com.tydic.service.IUserService;
10 
11 @Service("userService")  
12 public class UserServiceImpl implements IUserService {  
13     @Resource
14     private IUserDao userDao;  
15     @Override
16     public User getUserById(int userId) {  
17         return this.userDao.selectByPrimaryKey(userId);  
18     }
19 }

测试类

SSMMybatisTest.java

 1 import javax.annotation.Resource;
 2 
 3 import org.apache.log4j.Logger;
 4 import org.junit.Test;
 5 import org.junit.Before;
 6 import org.junit.runner.RunWith;
 7 import org.springframework.context.ApplicationContext;
 8 import org.springframework.context.support.ClassPathXmlApplicationContext;
 9 import org.springframework.test.context.ContextConfiguration;
10 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
11 
12 import com.alibaba.fastjson.JSON;
13 import com.tydic.domain.User;
14 import com.tydic.service.IUserService;
15 
16 @RunWith(SpringJUnit4ClassRunner.class)     //表示继承了SpringJUnit4ClassRunner类  
17 @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"})  
18 
19 public class SSMMybatisTest {
20 
21     private static Logger logger = Logger.getLogger(SSMMybatisTest.class);
22 
23     @Resource
24     private IUserService userService = null;
25     //private IUserService userService;
26 
27     /*//注释掉
28     private ApplicationContext ac = null;
29     //注释掉
30     @Before
31     public void before() {
32         ac = new ClassPathXmlApplicationContext("applicationContext.xml");
33         userService = (IUserService) ac.getBean("userService");
34     }*/
35 
36     @Test
37     public void test1() {
38         User user = userService.getUserById(1);
39         System.out.println(user.getUserName());
40         logger.info("值：" + user.getUserName());
41         logger.info(JSON.toJSONString(user));
42     }
43 }

测试成功

然后整合SpringMVC

 web.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
 3     xmlns="http://java.sun.com/xml/ns/javaee"  
 4     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"  
 5     version="3.0">  
 6     <display-name>Archetype Created Web Application</display-name>  
 7     <!-- Spring和mybatis的配置文件 -->  
 8     <context-param>  
 9         <param-name>contextConfigLocation</param-name>  
10         <param-value>classpath:spring-mybatis.xml</param-value>  
11     </context-param>  
12     <!-- 编码过滤器 -->  
13     <filter>  
14         <filter-name>encodingFilter</filter-name>  
15         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
16         <async-supported>true</async-supported>  
17         <init-param>  
18             <param-name>encoding</param-name>  
19             <param-value>UTF-8</param-value>  
20         </init-param>  
21     </filter>  
22     <filter-mapping>  
23         <filter-name>encodingFilter</filter-name>  
24         <url-pattern>/*</url-pattern>  
25     </filter-mapping>  
26     <!-- Spring监听器 -->  
27     <listener>  
28         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
29     </listener>  
30     <!-- 防止Spring内存溢出监听器 -->  
31     <listener>  
32         <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
33     </listener>  
34   
35     <!-- Spring MVC servlet -->  
36     <servlet>  
37         <servlet-name>SpringMVC</servlet-name>  
38         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
39         <init-param>  
40             <param-name>contextConfigLocation</param-name>  
41             <param-value>classpath:spring-mvc.xml</param-value>  
42         </init-param>  
43         <load-on-startup>1</load-on-startup>  
44         <async-supported>true</async-supported>  
45     </servlet>  
46     <servlet-mapping>  
47         <servlet-name>SpringMVC</servlet-name>  
48         <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->  
49         <url-pattern>/</url-pattern>  
50     </servlet-mapping>  
51     <welcome-file-list>  
52         <welcome-file>/index.jsp</welcome-file>  
53     </welcome-file-list>  
54   
55 </web-app>

测试

showUser.jsp

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>  
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
 3 <html>  
 4   <head>  
 5     <title>测试</title>  
 6   </head>  
 7     
 8   <body>  
 9     ${user.userName}  
10   </body>  
11 </html>

UserController.java

 1 package com.tydic.controller;
 2 
 3 import javax.annotation.Resource;  
 4 import javax.servlet.http.HttpServletRequest;
 5 
 6 import org.springframework.stereotype.Controller;  
 7 import org.springframework.ui.Model;  
 8 import org.springframework.web.bind.annotation.RequestMapping;  
 9 
10 import com.tydic.domain.User;
11 import com.tydic.service.IUserService;
12  
13   
14 @Controller  
15 @RequestMapping("/user")  
16 public class UserController {  
17     @Resource  
18     private IUserService userService;  
19       
20     @RequestMapping("/showUser")  
21     public String toIndex(HttpServletRequest request,Model model){  
22         int userId = Integer.parseInt(request.getParameter("id"));  
23         User user = this.userService.getUserById(userId);  
24         model.addAttribute("user", user);  
25         return "showUser";  
26     }  
27 }

打war包（先刷新、clean工程）

得到war包

拷到Tomcat下

 

启动服务器

顺利的话，成功开启

在浏览器测试

http://localhost:9080/testSSM3/index.jsp

http://localhost:9080/testSSM3/user/showUser?id=1

成功搭建SSM框架！

 

本文灵感来自

http://blog.csdn.net/gebitan505/article/details/44455235/

http://blog.csdn.net/qq_25730711/article/details/51094899

http://blog.csdn.net/chuyuqing/article/details/28879477

谢谢分享！