ssm框架搭建

一：环境准备

jdk：java version "1.8.0_251"

Tomcat：tomacat8

Maven：Apache Maven 3.6.3 

二，新建maven工程

 

 

工程建立完成，

2，搭建项目结构

 

项目结构如下

 3，Customer.java

package com.liam.pojo;

public class Customer {

    /**
     * 客户持久层
     */
    private Integer id;
    private String userName;
    private String jobs;
    private String phone;

    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 getJobs() {
        return jobs;
    }

    public void setJobs(String jobs) {
        this.jobs = jobs;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

}

4,CustomerDao

package com.liam.dao;

import com.liam.pojo.Customer;

public interface CustomerDao {
    /**
     * 根据id 查询客户信息
     * @param id
     * @return
     */
    public Customer findCustomerById(Integer id);
}

5,CustomerService

package com.liam.service;

import com.liam.pojo.Customer;

public interface CustomerService {
    public Customer findCustomerById(Integer id);
}

6,CustomerServiceImpl 

package com.liam.service.impl;

import com.liam.dao.CustomerDao;
import com.liam.pojo.Customer;
import com.liam.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class CustomerServiceImpl implements CustomerService {

    @Autowired
    private CustomerDao customerDao;
    @Override
    public Customer findCustomerById(Integer id) {
        return this.customerDao.findCustomerById(id);
    }
}

7,CustomerController

package com.liam.controller;

import com.liam.pojo.Customer;
import com.liam.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class CustomerController {
    @Autowired
    private CustomerService customerService;

    @RequestMapping("/findCustomerById")
    public String findCustomerById(Integer id, Model model){
        Customer customer = customerService.findCustomerById(id);
        model.addAttribute("customer",customer);
        return "customer";
    }
}

 9，

------------恢复内容开始------------

一：环境准备

jdk：java version "1.8.0_251"

Tomcat：tomacat8

Maven：Apache Maven 3.6.3 

二，新建maven工程

 

 

工程建立完成，

2，搭建项目结构

 

项目结构如下

 3，Customer.java

package com.liam.pojo;

public class Customer {

    /**
     * 客户持久层
     */
    private Integer id;
    private String userName;
    private String jobs;
    private String phone;

    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 getJobs() {
        return jobs;
    }

    public void setJobs(String jobs) {
        this.jobs = jobs;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

}

4,CustomerDao

package com.liam.dao;

import com.liam.pojo.Customer;

public interface CustomerDao {
    /**
     * 根据id 查询客户信息
     * @param id
     * @return
     */
    public Customer findCustomerById(Integer id);
}

5,CustomerService

package com.liam.service;

import com.liam.pojo.Customer;

public interface CustomerService {
    public Customer findCustomerById(Integer id);
}

6,CustomerServiceImpl 

package com.liam.service.impl;

import com.liam.dao.CustomerDao;
import com.liam.pojo.Customer;
import com.liam.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class CustomerServiceImpl implements CustomerService {

    @Autowired
    private CustomerDao customerDao;
    @Override
    public Customer findCustomerById(Integer id) {
        return this.customerDao.findCustomerById(id);
    }
}

7,CustomerController

package com.liam.controller;

import com.liam.pojo.Customer;
import com.liam.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class CustomerController {
    @Autowired
    private CustomerService customerService;

    @RequestMapping("/findCustomerById")
    public String findCustomerById(Integer id, Model model){
        Customer customer = customerService.findCustomerById(id);
        model.addAttribute("customer",customer);
        return "customer";
    }
}

 9，CustomerDao.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.liam.dao.CustomerDao">
    <!--根据id 查询客户信息-->
    <resultMap id="BaseResultMap" type="com.liam.pojo.Customer">
        <!--<result column="id" property="id" jdbcType="id" />-->
        <result column="userName" property="userName" jdbcType="VARCHAR" />
        <result column="jobs" property="jobs" jdbcType="VARCHAR" />
        <result column="phone" property="phone" jdbcType="VARCHAR" />
    </resultMap>

    <select id="findCustomerById" resultMap="BaseResultMap" parameterType="java.lang.Integer">
        select * from customer where id = #{id}
    </select>
    
</mapper>

10，mybatis-config.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>
    <!-- 别名定义 -->
    <typeAliases>
        <package name="com.liam.pojo"/>
    </typeAliases>
</configuration>

11，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:mvc="http://www.springframework.org/schema/mvc"
       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/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">

    <!-- 使用注解驱动-->
    <mvc:annotation-driven/>
    <!-- 配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 扫描所有handler（控制器）-->
    <context:component-scan base-package="com.liam.controller"/>

</beans>

12，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: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/context
       http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.liam.service"/>
    <bean id="placeholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:jdbc.properties"></property>
    </bean>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <!--数据库连接池-->
        <property name="driverClassName" value="${driver}"/>
        <property name="url" value="${url}"/>
        <property name="username" value="${user}"/>
        <property name="password" value="${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>

    <!--配置sqlsession工厂-->
    <!-- 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:mapper/*.xml"/>
    </bean>

    <!--配置DAO所在spring会自动查找下面的类-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.liam.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </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>

13，web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

  <display-name>Archetype Created Web Application</display-name>
  <!--启动spring容器-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring/spring-mybatis.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--请求和应答字符编码过滤器-->
  <filter>
    <filter-name>encoding-filter</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</filter-name>
    <!--<url-pattern>/*</url-pattern>-->
    <servlet-name>springDispatcherServlet</servlet-name>
  </filter-mapping>

  <!-- 用前端控制器初始化springmvc容器 -->
  <!-- The front controller of this Spring Web application, responsible for
      handling all application requests -->
  <servlet>
    <servlet-name>springDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <!-- Map all requests to the DispatcherServlet for handling -->
  <servlet-mapping>
    <servlet-name>springDispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>

14,pom.xml

<?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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>org.example</groupId>
  <artifactId>ssmTest2</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssmTest2 Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.3.18.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.3.18.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.3.18.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.3.18.RELEASE</version>
    </dependency>
    <!-- mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.5</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.21</version>
    </dependency>
    <!-- 数据库事务管理-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.3.18.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>4.3.18.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.5</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.73</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>ssmTest2</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>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </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>

15,customer.jsp

<%--
  Created by IntelliJ IDEA.
  User: 31436
  Date: 2020/9/3
  Time: 22:41
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>客户信息</title>
</head>
<body>
<table border=1>
    <tr>
        <td>编号</td>
        <td>名称</td>
        <td>职业</td>
        <td>电话</td>
    </tr>
    <tr>
        <td>${customer.id}</td>
        <td>${customer.userName}</td>
        <td>${customer.jobs}</td>
        <td>${customer.phone}</td>
    </tr>
</table>
</body>
</html>

16,sql

CREATE TABLE customer(
    id int(32) PRIMARY key AUTO_INCREMENT,
    username varchar(50),
    jobs varchar(50),
    phone varchar(16)
    );

INSERT INTO customer VALUES (1, 'liam', 'worker', 123456789);
INSERT INTO customer VALUES (2, 'wlin', 'teacher', 987654321);

17,运行结果

 总结：

1，网上的参考资料比较多，主要参考了：

https://www.cnblogs.com/wanson/articles/9998829.html

2，在我第一次搭建的时候，使用的是tomacat10，结果一直出现

解决无果，换用tomacat8，未出现上面的问题。

2，

java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.Intege

mybatis配置的jdbcType类型要是大写的，检查了mybatis的配置文件，果然是这个问题

3，

Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory

参考此链接：

https://blog.csdn.net/weixin_41955327/article/details/82286309

 报错之前为 userName -> user，对应的 

 4,

There is no setter for property named 'dd_valueId' in 'class com.manager.pojo.DataDictionary'的错误解决方法

mybatis 映射文件和 Bean应该对应一致。

5，

使用Idea部署SSM项目后，访问路径为url:8080/项目名_war_exploded的解决方案

在tomcat配置页的Deployment下，修改Application context为/，即可直接使用url:8080访问项目主页。或者任意你想要的路径，

6，

Result Maps collection does not contain value for 错误

 当时未添加resultMap 数据类型，parameterType 类型也选的不正确。按照上面正确的配置即可

7，

java.sql.SQLException:  The server time zone value '???ú±ê×??±??' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

错误信息翻译 —— java.sql.SQLException: 服务器时区值'?? u±e×??±??未被识别或代表多个时区。如果希望利用时区支持，必须配置服务器或JDBC驱动程序(通过serverTimezone配置属性)，以使用更特殊的时区值。

解决方法：JDBC连接的URL后面加上serverTimezone = GMT，如果需要使用GMT + 8时区，需要写成GMT％2B8。

 追加上后面这些

8，使用Idea构建springmvc框架，出现no bean named ‘cacheManager’ is defined 错误。

 参考链接 https://blog.csdn.net/qq_23184291/article/details/78086398

9，整个工程参考链接

https://www.cnblogs.com/wanson/articles/9998829.html