Eclipse搭建SSM框架步骤

2020年3月12日21:20:34

记录搭建过程温故知新

目录如下

1.搭建SSM框架环境准备包
- eclipse tomcat maven mysql

关于maven项目是什么请自行百度，因为我也讲不清楚，不误人子弟了就，简单介绍操作步骤
File ----->NEW----->(有的同学可以看到Maven Project 看不到的往下继续)----->Other （点击other后）
选择maven project 选项　一路next 后你就纠结了在这里
选择 webapp 后 next
maven项目中的三个必要字段 group id 一般来讲通过pom.xml中的 dependency 引入的jar包可通过这三个字段获取到
- group id ：暂且理解为包名　ps：记一下在后边配置文件中用的到
- artifactId ：项目名
- version ：版本
至此第二步骤完成

3.为项目增加 library 应对某些同鞋 Index.jsp报错
- 1.右击你的项目根目录-----》properties 或者 Build Path ----->Configure Build Path...
- 2.
- 3.
- 4.
- 选择合适的tomcat版本
4.建立如下文件目录结构
- 配置文件目录
- 第一个箭头： mvc操作用到的实体类控制器映射文件等
- 第二个箭头：各个配置文件
- 第三个箭头：页面存放的位置测试用到的jsp页面写在了这里面

5.配置文件的内容

　jdbc.properties 数据库连接参数赋值

 1 driver=com.mysql.jdbc.Driver 
 2 url=jdbc:mysql://127.0.0.1:3306/ssm
 3 username=root
 4 password=123456
 5 #\u5B9A\u4E49\u521D\u59CB\u8FDE\u63A5\u6570  
 6 initialSize=0  
 7 #\u5B9A\u4E49\u6700\u5927\u8FDE\u63A5\u6570  
 8 maxActive=20  
 9 #\u5B9A\u4E49\u6700\u5927\u7A7A\u95F2  
10 maxIdle=20  
11 #\u5B9A\u4E49\u6700\u5C0F\u7A7A\u95F2  
12 minIdle=1  
13 #\u5B9A\u4E49\u6700\u957F\u7B49\u5F85\u65F6\u95F4  
14 maxWait=60000

log4j.properties 日志配置文件

#\u5B9A\u4E49LOG\u8F93\u51FA\u7EA7\u522B  
    log4j.rootLogger=INFO,Console,File  
    #\u5B9A\u4E49\u65E5\u5FD7\u8F93\u51FA\u76EE\u7684\u5730\u4E3A\u63A7\u5236\u53F0  
    log4j.appender.Console=org.apache.log4j.ConsoleAppender  
    log4j.appender.Console.Target=System.out  
    #\u53EF\u4EE5\u7075\u6D3B\u5730\u6307\u5B9A\u65E5\u5FD7\u8F93\u51FA\u683C\u5F0F\uFF0C\u4E0B\u9762\u4E00\u884C\u662F\u6307\u5B9A\u5177\u4F53\u7684\u683C\u5F0F  
    log4j.appender.Console.layout = org.apache.log4j.PatternLayout  
    log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  
 
    #\u6587\u4EF6\u5927\u5C0F\u5230\u8FBE\u6307\u5B9A\u5C3A\u5BF8\u7684\u65F6\u5019\u4EA7\u751F\u4E00\u4E2A\u65B0\u7684\u6587\u4EF6  
    log4j.appender.File = org.apache.log4j.RollingFileAppender  
    #\u6307\u5B9A\u8F93\u51FA\u76EE\u5F55  
    log4j.appender.File.File = logs/ssm.log  
    #\u5B9A\u4E49\u6587\u4EF6\u6700\u5927\u5927\u5C0F  
    log4j.appender.File.MaxFileSize = 10MB  
    # \u8F93\u51FA\u6240\u4EE5\u65E5\u5FD7\uFF0C\u5982\u679C\u6362\u6210DEBUG\u8868\u793A\u8F93\u51FADEBUG\u4EE5\u4E0A\u7EA7\u522B\u65E5\u5FD7  
    log4j.appender.File.Threshold = ALL  
    log4j.appender.File.layout = org.apache.log4j.PatternLayout  
    log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH:mm:ss}][%c]%m%n

mybatis-config.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE configuration
 3   PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
 4   "http://mybatis.org/dtd/mybatis-3-config.dtd">
 5     <configuration>
 6         <!-- 设置别名 -->
 7         <typeAliases>
 8             <package name="com.上文中需要你记得.ssm.pojo" />
 9         </typeAliases>
10     </configuration>

spring-mvc.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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans    
                            http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
                            http://www.springframework.org/schema/context    
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                            http://www.springframework.org/schema/mvc    
                            http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
    <context:component-scan
        base-package="com.你需要记录的.ssm.controller" />
        
    <!-- 注册MVC注解驱动 -->
    <mvc:annotation-driven />
    
    <!-- 静态资源可访问的设置方式 -->
    <mvc:default-servlet-handler />
    
    <!--避免IE执行AJAX时，返回JSON出现下载文件 -->
    <bean id="mappingJacksonHttpMessageConverter"
        class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <value>text/html;charset=UTF-8</value>
            </list>
        </property>
    </bean>
    
    <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->
            </list>
        </property>
    </bean>
    
    <!-- 定义跳转的文件的前后缀 ，视图模式配置 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 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 -->
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
    
    <!-- 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 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 默认编码 -->
        <property name="defaultEncoding" value="utf-8" />
        <!-- 文件大小最大值 -->
        <property name="maxUploadSize" value="10485760000" />
        <!-- 内存中的最大值 -->
        <property name="maxInMemorySize" value="40960" />
    </bean>
</beans>

spring-mybatis.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"  
        xsi:schemaLocation="http://www.springframework.org/schema/beans    
                            http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
                            http://www.springframework.org/schema/context    
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                            http://www.springframework.org/schema/mvc    
                            http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> 
        <!-- 自动扫描 -->
        <context:component-scan base-package="com.你需要记录的.ssm" /> 
        <!-- 引入配置文件 --> 
         <bean id="propertyConfigurer"  
            class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
            <property name="location" value="classpath:jdbc.properties" />  
        </bean>  
        
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
            destroy-method="close">  
            <property name="driverClassName" value="${driver}" />  
            <property name="url" value="${url}" />  
            <property name="username" value="${username}" />  
            <property name="password" value="${password}" />  
            <!-- 初始化连接大小 -->  
            <property name="initialSize" value="${initialSize}"></property>  
            <!-- 连接池最大数量 -->  
            <property name="maxActive" value="${maxActive}"></property>  
            <!-- 连接池最大空闲 -->  
            <property name="maxIdle" value="${maxIdle}"></property>  
            <!-- 连接池最小空闲 -->  
            <property name="minIdle" value="${minIdle}"></property>  
            <!-- 获取连接最大等待时间 -->  
            <property name="maxWait" value="${maxWait}"></property>  
        </bean>
        
         <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->  
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
            <property name="dataSource" ref="dataSource" />  
            <!-- 自动扫描mapping.xml文件 -->  
            <property name="mapperLocations" value="classpath*:com/你需要记录的/ssm/mapping/*.xml"></property> 
            <property name="configLocation" value="classpath:mybatis-config.xml"></property> 
        </bean>  
        
        <!-- DAO接口所在包名，Spring会自动查找其下的类 -->  
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
            <property name="basePackage" value="com.gzk.ssm.dao" />  
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
        </bean>  
        
        <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->  
        <bean id="transactionManager"  
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
            <property name="dataSource" ref="dataSource" />  
        </bean>  
    </beans>

重点的pom.xml 与 web.xml pom.xml位于项目根目录下
pom.xml

<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>com.根据项目生成的.ssm</groupId>
  <artifactId>ssm</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>ssm Maven Webapp</name>
  <url>http://maven.apache.org</url>
  
  <properties>
      <!-- Spring 版本号 -->
      <spring.version>4.0.2.RELEASE</spring.version>
      <!-- Mybatis 版本号 -->
      <mybatis.version>3.2.6</mybatis.version>
      <!-- loh4j日志文件管理包版本 -->
      <slf4j.version>1.7.7</slf4j.version>
      <log4j.version>1.2.17</log4j.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    
    <!-- Spring核心包 -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</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-oxm</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>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-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>
 
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.2</version>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.30</version>
        </dependency>
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.2.2</version>
        </dependency>
        <!-- JSTL标签类 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <!-- 日志文件管理包 -->
        <!-- log start -->
        <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>1.1.41</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 -->
        <!-- 映入JSON -->
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.13</version>
        </dependency>
        <!-- 上传组件包 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.9</version>
        </dependency>
  </dependencies>
  
  
  
  <build>
    <finalName>ssm</finalName>
    <!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
    <resources>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>

  </build>
</project>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">
    <display-name>Archetype Created Web Application</display-name>
    <!-- Spring和mybatis的配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mybatis.xml</param-value>
    </context-param>
    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <!-- Spring监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    <!-- 防止Spring内存溢出监听器 -->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>
    
    <!-- Spring MVC servlet -->
    <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:spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    
    <welcome-file-list>
        <welcome-file>/index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

至此所有的配置文件都已准备就绪

6 创建相应的数据库，测试表

7.编写，或生成对应表的控制器，映射文件等

UserController

package com.gzk.ssm.controller;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.xxx.ssm.pojo.User;
import com.xxx.ssm.service.UserService;

@Controller
@RequestMapping("/user")
public class UserController {
    @Resource
    private UserService userService;
    @RequestMapping("/userShow")
    public String toIndex(HttpServletRequest request,Model model) {
        Integer userid = Integer.parseInt(request.getParameter("id"));
        User user = userService.getUserByid(userid);
        model.addAttribute("user",user);
        return "showUser";

    }
}

UserService

package com.gzk.ssm.service;

import javax.annotation.Resource;
import javax.transaction.Transactional;

import org.springframework.stereotype.Service;

import com.xxx.ssm.dao.UserMapper;
import com.xxx.ssm.pojo.User;

@Service
@Transactional
public class UserService {
    @Resource
    private UserMapper usermapper;
    
    public User getUserByid(Integer id) {
        User user = null;
        user = usermapper.getUserByid(id);
        return user;
        
    }
    
}

UserMapper

package com.xxx.ssm.dao;

import org.apache.ibatis.annotations.Param;

import com.xxx.ssm.pojo.User;

public interface UserMapper {
        
    public User getUserByid(@Param("id")Integer id);
    

}

UserMapper.xml

<?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.xxx.ssm.dao.UserMapper">
    <select id="getUserByid" parameterType="Integer" resultType="User"> 
        SELECT * from user where id = #{id}
    </select>
</mapper>

User 此实体类与数据库中测试表中字段应该一致

package com.xxx.ssm.pojo;

public class User {
    private Integer id;
    private String username;
    private String password;
    private int age;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    
}

至此教程结束，有问题请留评论
ps 2020年3月16日20:27:31 补充一下tomcat启动本项目的方法
- eclipse中创建tomcat服务在 Service中右键 New ---》Service
- 选择合适的tomcat 版本下方 Service name自定义一个服务名称，选择Service runtime Environment 然后选择自己相应的项目文件夹就可以了
- 服务创建完成以后，在左侧文件目录下找到相应的Service配置文件
- 打开server.xml 在最底部增加相应的配置
- 至此
- maven项目需要在pom.xml配置完成，设置完成server.xml后需要进行 maven install 操作具体如下
  - 1.右键你的项目我的例如 ssm
  - 2.找到run as 那个绿色的按钮 ---------》右侧出现的选项中找到 maven-install
  - 3.如果install 过程中报错，需要第二部中找到 maven-clean 然后在顶部 Project 中找到 Clean 点击以后选择你的项目，等待一会，然后在install 操作。
- install成功以后就可以点击启动按钮，进行项目启动了。
- 启动成功后在浏览器中写入请求路径：例如 http://localhost:你的项目端口号/Controller的@RequestMapping/方法的 @RequestMapping ?id=参数值
- 至此

秒客网

Eclipse搭建SSM框架步骤

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