e3mall——项目搭建

淡淡的烟草味﹌ 2021-11-29 15:22 244阅读 0赞

![1251900-20180321211826911-1964320587.png][]

## 一、Maven项目搭建 ##

1）在父工程中进行依赖管理，并没有导入jar包

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

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/xsd/maven-4.0.0.xsd">
      3     <modelVersion>4.0.0</modelVersion>
      4     <groupId>cn.e3mall</groupId>
      5     <artifactId>e3-parent</artifactId>
      6     <version>0.0.1-SNAPSHOT</version>
      7     <modules>
      8         <module>e3-common</module>
      9         <module>e3-manager</module>
     10     </modules>
     11     <packaging>pom</packaging>
     12     
     13     <properties>
     14         <junit.version>4.12</junit.version>
     15         <spring.version>4.2.4.RELEASE</spring.version>
     16         <mybatis.version>3.2.8</mybatis.version>
     17         <mybatis.spring.version>1.2.2</mybatis.spring.version>
     18         <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
     19         <mysql.version>5.1.32</mysql.version>
     20         <slf4j.version>1.6.4</slf4j.version>
     21         <jackson.version>2.4.2</jackson.version>
     22         <druid.version>1.0.9</druid.version>
     23         <httpclient.version>4.3.5</httpclient.version>
     24         <jstl.version>1.2</jstl.version>
     25         <servlet-api.version>2.5</servlet-api.version>
     26         <jsp-api.version>2.0</jsp-api.version>
     27         <joda-time.version>2.5</joda-time.version>
     28         <commons-lang3.version>3.3.2</commons-lang3.version>
     29         <commons-io.version>1.3.2</commons-io.version>
     30         <commons-net.version>3.3</commons-net.version>
     31         <pagehelper.version>3.2.3</pagehelper.version>
     32         
     33         <jsqlparser.version>0.9.1</jsqlparser.version>
     34         <commons-fileupload.version>1.3.1</commons-fileupload.version>
     35         <jedis.version>2.7.2</jedis.version>
     36         <solrj.version>4.10.3</solrj.version>
     37         <dubbo.version>2.5.3</dubbo.version>
     38         <zookeeper.version>3.4.7</zookeeper.version>
     39         <zkclient.version>0.1</zkclient.version>
     40         <activemq.version>5.11.2</activemq.version>
     41         <freemarker.version>2.3.23</freemarker.version>
     42         <quartz.version>2.2.2</quartz.version>
     43     </properties>
     44 
     45     
     46     <dependencyManagement>
     47         <dependencies>
     48             
     49             <dependency>
     50                 <groupId>joda-time</groupId>
     51                 <artifactId>joda-time</artifactId>
     52                 <version>${joda-time.version}</version>
     53             </dependency>
     54             
     55             <dependency>
     56                 <groupId>org.apache.commons</groupId>
     57                 <artifactId>commons-lang3</artifactId>
     58                 <version>${commons-lang3.version}</version>
     59             </dependency>
     60             <dependency>
     61                 <groupId>org.apache.commons</groupId>
     62                 <artifactId>commons-io</artifactId>
     63                 <version>${commons-io.version}</version>
     64             </dependency>
     65             <dependency>
     66                 <groupId>commons-net</groupId>
     67                 <artifactId>commons-net</artifactId>
     68                 <version>${commons-net.version}</version>
     69             </dependency>
     70             
     71             <dependency>
     72                 <groupId>com.fasterxml.jackson.core</groupId>
     73                 <artifactId>jackson-databind</artifactId>
     74                 <version>${jackson.version}</version>
     75             </dependency>
     76             
     77             <dependency>
     78                 <groupId>org.apache.httpcomponents</groupId>
     79                 <artifactId>httpclient</artifactId>
     80                 <version>${httpclient.version}</version>
     81             </dependency>
     82             
     83             <dependency>
     84                 <groupId>org.quartz-scheduler</groupId>
     85                 <artifactId>quartz</artifactId>
     86                 <version>${quartz.version}</version>
     87             </dependency>
     88             
     89             <dependency>
     90                 <groupId>junit</groupId>
     91                 <artifactId>junit</artifactId>
     92                 <version>${junit.version}</version>
     93                 <scope>test</scope>
     94             </dependency>
     95             
     96             <dependency>
     97                 <groupId>org.slf4j</groupId>
     98                 <artifactId>slf4j-log4j12</artifactId>
     99                 <version>${slf4j.version}</version>
    100             </dependency>
    101             
    102             <dependency>
    103                 <groupId>org.mybatis</groupId>
    104                 <artifactId>mybatis</artifactId>
    105                 <version>${mybatis.version}</version>
    106             </dependency>
    107             <dependency>
    108                 <groupId>org.mybatis</groupId>
    109                 <artifactId>mybatis-spring</artifactId>
    110                 <version>${mybatis.spring.version}</version>
    111             </dependency>
    112             <dependency>
    113                 <groupId>com.github.miemiedev</groupId>
    114                 <artifactId>mybatis-paginator</artifactId>
    115                 <version>${mybatis.paginator.version}</version>
    116             </dependency>
    117             <dependency>
    118                 <groupId>com.github.pagehelper</groupId>
    119                 <artifactId>pagehelper</artifactId>
    120                 <version>${pagehelper.version}</version>
    121             </dependency>
    122             
    123             <dependency>
    124                 <groupId>mysql</groupId>
    125                 <artifactId>mysql-connector-java</artifactId>
    126                 <version>${mysql.version}</version>
    127             </dependency>
    128             
    129             <dependency>
    130                 <groupId>com.alibaba</groupId>
    131                 <artifactId>druid</artifactId>
    132                 <version>${druid.version}</version>
    133             </dependency>
    134             
    135             <dependency>
    136                 <groupId>org.springframework</groupId>
    137                 <artifactId>spring-context</artifactId>
    138                 <version>${spring.version}</version>
    139             </dependency>
    140             <dependency>
    141                 <groupId>org.springframework</groupId>
    142                 <artifactId>spring-beans</artifactId>
    143                 <version>${spring.version}</version>
    144             </dependency>
    145             <dependency>
    146                 <groupId>org.springframework</groupId>
    147                 <artifactId>spring-webmvc</artifactId>
    148                 <version>${spring.version}</version>
    149             </dependency>
    150             <dependency>
    151                 <groupId>org.springframework</groupId>
    152                 <artifactId>spring-jdbc</artifactId>
    153                 <version>${spring.version}</version>
    154             </dependency>
    155             <dependency>
    156                 <groupId>org.springframework</groupId>
    157                 <artifactId>spring-aspects</artifactId>
    158                 <version>${spring.version}</version>
    159             </dependency>
    160             <dependency>
    161                 <groupId>org.springframework</groupId>
    162                 <artifactId>spring-jms</artifactId>
    163                 <version>${spring.version}</version>
    164             </dependency>
    165             <dependency>
    166                 <groupId>org.springframework</groupId>
    167                 <artifactId>spring-context-support</artifactId>
    168                 <version>${spring.version}</version>
    169             </dependency>
    170             
    171             <dependency>
    172                 <groupId>jstl</groupId>
    173                 <artifactId>jstl</artifactId>
    174                 <version>${jstl.version}</version>
    175             </dependency>
    176             <dependency>
    177                 <groupId>javax.servlet</groupId>
    178                 <artifactId>servlet-api</artifactId>
    179                 <version>${servlet-api.version}</version>
    180                 <scope>provided</scope>
    181             </dependency>
    182             <dependency>
    183                 <groupId>javax.servlet</groupId>
    184                 <artifactId>jsp-api</artifactId>
    185                 <version>${jsp-api.version}</version>
    186                 <scope>provided</scope>
    187             </dependency>
    188             
    189             <dependency>
    190                 <groupId>commons-fileupload</groupId>
    191                 <artifactId>commons-fileupload</artifactId>
    192                 <version>${commons-fileupload.version}</version>
    193             </dependency>
    194             
    195             <dependency>
    196                 <groupId>redis.clients</groupId>
    197                 <artifactId>jedis</artifactId>
    198                 <version>${jedis.version}</version>
    199             </dependency>
    200             
    201             <dependency>
    202                 <groupId>org.apache.solr</groupId>
    203                 <artifactId>solr-solrj</artifactId>
    204                 <version>${solrj.version}</version>
    205             </dependency>
    206             
    207             <dependency>
    208                 <groupId>com.alibaba</groupId>
    209                 <artifactId>dubbo</artifactId>
    210                 <version>${dubbo.version}</version>
    211             </dependency>
    212             <dependency>
    213                 <groupId>org.apache.zookeeper</groupId>
    214                 <artifactId>zookeeper</artifactId>
    215                 <version>${zookeeper.version}</version>
    216             </dependency>
    217             <dependency>
    218                 <groupId>com.github.sgroschupf</groupId>
    219                 <artifactId>zkclient</artifactId>
    220                 <version>${zkclient.version}</version>
    221             </dependency>
    222             <dependency>
    223                 <groupId>org.apache.activemq</groupId>
    224                 <artifactId>activemq-all</artifactId>
    225                 <version>${activemq.version}</version>
    226             </dependency>
    227             <dependency>
    228                 <groupId>org.freemarker</groupId>
    229                 <artifactId>freemarker</artifactId>
    230                 <version>${freemarker.version}</version>
    231             </dependency>
    232 
    233         </dependencies>
    234     </dependencyManagement>
    235 
    236     <build>
    237         <finalName>${project.artifactId}</finalName>
    238         <plugins>
    239             
    240             <plugin>
    241                 <groupId>org.apache.maven.plugins</groupId>
    242                 <artifactId>maven-resources-plugin</artifactId>
    243                 <version>2.7</version>
    244                 <configuration>
    245                     <encoding>UTF-8</encoding>
    246                 </configuration>
    247             </plugin>
    248             
    249             <plugin>
    250                 <groupId>org.apache.maven.plugins</groupId>
    251                 <artifactId>maven-compiler-plugin</artifactId>
    252                 <version>3.2</version>
    253                 <configuration>
    254                     <source>1.7</source>
    255                     <target>1.7</target>
    256                     <encoding>UTF-8</encoding>
    257                 </configuration>
    258             </plugin>
    259         </plugins>
    260         <pluginManagement>
    261             <plugins>
    262                 
    263                 <plugin>
    264                     <groupId>org.apache.tomcat.maven</groupId>
    265                     <artifactId>tomcat7-maven-plugin</artifactId>
    266                     <version>2.2</version>
    267                 </plugin>
    268             </plugins>
    269         </pluginManagement>
    270     </build>
    271 </project>
    272 
    273 
    274

父工程的pom.xml

2）pojo层（什么都不引入）

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

3）dao层（引入Mybatis，MySQL，连接池，pojo层）

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

1 <?xml version="1.0" encoding="UTF-8"?>
     2 <project xmlns="http://maven.apache.org/POM/4.0.0"
     3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     5     <parent>
     6         <artifactId>e3-manager</artifactId>
     7         <groupId>cn.e3mall</groupId>
     8         <version>0.0.1-SNAPSHOT</version>
     9     </parent>
    10     <modelVersion>4.0.0</modelVersion>
    11 
    12     <artifactId>e3-manager-dao</artifactId>
    13     <dependencies>
    14         <dependency>
    15             <groupId>cn.e3mall</groupId>
    16             <artifactId>e3-manager-pojo</artifactId>
    17             <version>0.0.1-SNAPSHOT</version>
    18         </dependency>
    19 
    20         
    21         <dependency>
    22             <groupId>org.mybatis</groupId>
    23             <artifactId>mybatis</artifactId>
    24         </dependency>
    25         <dependency>
    26             <groupId>org.mybatis</groupId>
    27             <artifactId>mybatis-spring</artifactId>
    28         </dependency>
    29         <dependency>
    30             <groupId>com.github.miemiedev</groupId>
    31             <artifactId>mybatis-paginator</artifactId>
    32         </dependency>
    33         <dependency>
    34             <groupId>com.github.pagehelper</groupId>
    35             <artifactId>pagehelper</artifactId>
    36         </dependency>
    37         
    38         <dependency>
    39             <groupId>mysql</groupId>
    40             <artifactId>mysql-connector-java</artifactId>
    41         </dependency>
    42         
    43         <dependency>
    44             <groupId>com.alibaba</groupId>
    45             <artifactId>druid</artifactId>
    46         </dependency>
    47     </dependencies>
    48 
    49 </project>

4）interface层（引入pojo层）

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

5）Service层（引入interface层，dao层，Spring）

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

1 <?xml version="1.0" encoding="UTF-8"?>
     2 <project xmlns="http://maven.apache.org/POM/4.0.0"
     3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     5     <parent>
     6         <artifactId>e3-manager</artifactId>
     7         <groupId>cn.e3mall</groupId>
     8         <version>0.0.1-SNAPSHOT</version>
     9     </parent>
    10     <modelVersion>4.0.0</modelVersion>
    11 
    12     <artifactId>e3-manager-service</artifactId>
    13     <dependencies>
    14         <dependency>
    15             <groupId>cn.e3mall</groupId>
    16             <artifactId>e3-manager-dao</artifactId>
    17             <version>0.0.1-SNAPSHOT</version>
    18         </dependency>
    19         <dependency>
    20             <groupId>cn.e3mall</groupId>
    21             <artifactId>e3-manager-interface</artifactId>
    22             <version>0.0.1-SNAPSHOT</version>
    23         </dependency>
    24         
    25         <dependency>
    26             <groupId>org.springframework</groupId>
    27             <artifactId>spring-context</artifactId>
    28         </dependency>
    29         <dependency>
    30             <groupId>org.springframework</groupId>
    31             <artifactId>spring-beans</artifactId>
    32         </dependency>
    33         <dependency>
    34             <groupId>org.springframework</groupId>
    35             <artifactId>spring-webmvc</artifactId>
    36         </dependency>
    37         <dependency>
    38             <groupId>org.springframework</groupId>
    39             <artifactId>spring-jdbc</artifactId>
    40         </dependency>
    41         <dependency>
    42             <groupId>org.springframework</groupId>
    43             <artifactId>spring-aspects</artifactId>
    44         </dependency>
    45         <dependency>
    46             <groupId>org.springframework</groupId>
    47             <artifactId>spring-jms</artifactId>
    48         </dependency>
    49         <dependency>
    50             <groupId>org.springframework</groupId>
    51             <artifactId>spring-context-support</artifactId>
    52         </dependency>
    53     </dependencies>
    54 
    55 
    56 </project>

6）引入JSP相关

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

1 <?xml version="1.0" encoding="UTF-8"?>
     2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     3          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     4     <parent>
     5         <artifactId>e3-manager</artifactId>
     6         <groupId>cn.e3mall</groupId>
     7         <version>0.0.1-SNAPSHOT</version>
     8     </parent>
     9 
    10     <modelVersion>4.0.0</modelVersion>
    11     <packaging>war</packaging>
    12 
    13     <name>e3-manager-web</name>
    14     <artifactId>e3-manager-web</artifactId>
    15 
    16     <dependencies>
    17         <dependency>
    18             <groupId>cn.e3mall</groupId>
    19             <artifactId>e3-manager-service</artifactId>
    20             <version>0.0.1-SNAPSHOT</version>
    21         </dependency>
    22 
    23         
    24         <dependency>
    25             <groupId>jstl</groupId>
    26             <artifactId>jstl</artifactId>
    27         </dependency>
    28         <dependency>
    29             <groupId>javax.servlet</groupId>
    30             <artifactId>servlet-api</artifactId>
    31             <scope>provided</scope>
    32         </dependency>
    33         <dependency>
    34             <groupId>javax.servlet</groupId>
    35             <artifactId>jsp-api</artifactId>
    36             <scope>provided</scope>
    37         </dependency>
    38     </dependencies>
    39 
    40 </project>

## 二、SSM项目搭建 ##

![1251900-20180321212639399-1659990672.png][]

1）Springmvc

2）applicationContext-dao.xml

<?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:p="http://www.springframework.org/schema/p"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    
    
    
        
    
        
        <context:property-placeholder location="classpath:db.properties"/>
    
        
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
              destroy-method="close">
            <property name="driverClassName" value="${jdbc.driverClass}" />
            <property name="url" value="${jdbc.jdbcUrl}" />
            <property name="username" value="${jdbc.user}" />
            <property name="password" value="${jdbc.password}" />
            <property name="maxActive" value="10" />
            <property name="maxIdle" value="5" />
        </bean>
    
        
        <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
            
            <property name="dataSource" ref="dataSource"/>
            
            <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            
            <property name="basePackage" value="cn.e3mall.mapper"/>
        </bean>
    
    
    
    </beans>

3）applicationContext-service.xml

4）applicationContext-transaction.xml

![1251900-20180321213410607-1849795905.png][]

5）web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
             version="3.1">
    
        
        <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>
        </filter>
    
        <filter-mapping>
            <filter-name>encoding</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/applicationContext-*.xml</param-value>
        </context-param>
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
    
        
        <servlet>
            <servlet-name>dispatcher</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:spring/springmvc.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
        </servlet>
    
        <servlet-mapping>
            <servlet-name>dispatcher</servlet-name>
            
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>

6）sqlMapConfig.xml

<?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>
        
        <typeAliases>
            
            <package name="cn.x5456.domain" />
        </typeAliases>
    
        
            
        
    
    </configuration>

## 三、小Demo ##

由于使用的是逆向工程的方法，dao，pojo不用我们整

1）Service层（逆向工程条件查询）

@Service
    @Transactional
    public class ItemServiceImpl implements ItemService {
    
        @Autowired
        private TbItemMapper itemMapper;
    
        @Override
        public TbItem getItemById(Long id) {
            // 逆向工程两种通过主键查询的方法
            // 方法一：
            // itemMapper.selectByPrimaryKey(id);
            // 方法二：
            TbItemExample example = new TbItemExample();
            // 1.设置查询条件
            Criteria criteria = example.createCriteria();
            criteria.andIdEqualTo(id);
            // 2.执行查询
            List<TbItem> itemList = itemMapper.selectByExample(example);
            // 3.返回
            if (itemList!=null&&itemList.size()>0){
                return itemList.get(0);
            }
    
            return null;
        }
    }

2）Controller层（引入路径接收参数的方法）

@Controller
    public class ItemController {
    
        @Autowired
        private ItemService itemService;
    
        // 又一种接收参数的方法，路径接受
        @RequestMapping("/item/{itemId}")
        @ResponseBody    // 返回一个json
        private TbItem getItemById(@PathVariable Long itemId){
    
            return itemService.getItemById(itemId);
    
        }
    
    }

![1251900-20180321213428964-1845240556.png][]

#### 原因 ####

此异常的原因是由于mapper接口编译后在同一个目录下没有找到mapper映射文件而出现的。由于maven工程在默认情况下src/main/java目录下的mapper文件是不发布到target目录下的。

#### 解决方法1 ####

在e3-manager-dao工程的pom文件中添加如下内容：（原理：将配置文件路径，改到java目录下）

<build>
    		<resources>
                <resource>
                    <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.properties</include>
                        <include>**/*.xml</include>
                    </includes>
                    <filtering>false</filtering>
                </resource>
            </resources>
    	</build>

### 解决方法2： ###

将映射文件放到resources目录下

![1251900-20180321213655504-2001762896.png][]

转载于:https://www.cnblogs.com/x54256/p/8619877.html

[1251900-20180321211826911-1964320587.png]: /images/20211129/cd45f65111864f2aa393e6aa960a5801.png
[ContractedBlock.gif]: https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif
[ExpandedBlockStart.gif]: /images/20211129/20a2ea583d374649a71a088ea95bfa51.png
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