SSM整合記錄
提示:本文是自己測試ssm的環境搭建
文章目錄
- SSM整合記錄
- 前言
- 一、建構項目結構
-
- 1. 建立一個項目
- 2. 完善目錄結構
- 二、配置檔案
-
- 1. 導入依賴檔案
- 2. web.xml編寫
- 3.編寫applicationContext.xml
- 4. 編寫springmvc.xml
- 三、編寫測試環境
-
- 1. 資料庫建立
- 2. 編寫實體類
- 3. 編寫持久層接口
- 4. 編寫業務層接口及其實作類
- 5.編寫controller
- 6.編寫前端html
- 四、運作測試
-
- 1. 部署項目
- 2. 運作項目
- 總結
前言
ssm整合是學習java開發過程中比較重要的學習點,通過spring架構整合springMVC與mybatis
使用工具:IDEA
一、建構項目結構
1. 建立一個項目
2. 完善目錄結構
在main下建立java和resources 并分别标記為源碼包和資源包
注意:在resources下建立兩個xml檔案,檔案名分别為:applicationContext.xml springmvc.xml
WEB-INF下建立views檔案夾
二、配置檔案
1. 導入依賴檔案
在pom.xml中添加依賴
内容如下:
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.6</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</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>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
</dependencies>
引入:
完成後檢視外部庫
說明依賴添加成功
2. web.xml編寫
代碼如下(示例):
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<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">
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>encodingFilter</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>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置Spring的監聽器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置加載類路徑的配置檔案 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
</web-app>
3.編寫applicationContext.xml
提醒: 請按自己的情況修改配置檔案中的包名(注釋中已标出需要注意的地方)
内容如下:
<?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"
xmlns:aop="http://www.springframework.org/schema/aop"
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/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
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.kaier"> <!--base-package:注意與自己的保持一緻-->
<!-- 配置要忽略的注解 -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql:///ssm_test2" /> <!--資料庫名注意與自己的保持一緻-->
<property name="username" value="root" /><!--資料庫賬戶注意與自己的保持一緻-->
<property name="password" value="root" /><!--資料庫密碼注意與自己的保持一緻-->
</bean>
<!-- 配置SqlSession的工廠 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置掃描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.kaier.dao"/><!--value:注意與自己的保持一緻-->
</bean>
</beans>
4. 編寫springmvc.xml
提醒: 請按自己的情況修改配置檔案中的包名(注釋中已标出需要注意的地方)
代碼如下(示例):
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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">
<!--開啟注解掃描 (指定掃描的包)-->
<context:component-scan base-package="com.kaier"/><!--base-package:注意與自己的保持一緻-->
<!--配置視圖解析器對象(尋找到pages下的頁面)-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--解析之後尋找的頁面路徑-->
<property name="prefix" value="/WEB-INF/views/"></property>
<!--檔案字尾名-->
<property name="suffix" value=".html"></property>
</bean>
<!--開啟靜态資源-->
<mvc:default-servlet-handler/>
<!--開啟SpringMVC注解支援-->
<mvc:annotation-driven/>
</beans>
三、編寫測試環境
1. 資料庫建立
代碼如下(示例):
CREATE DATABASE ssm_test2;
USE ssm_test2;
CREATE TABLE account(
id INT PRIMARY KEY AUTO_INCREMENT,
NAME VARCHAR(20),
age INT
);
2. 編寫實體類
代碼如下(示例):
import java.io.Serializable;
public class Account implements Serializable{
private Integer id;
private String name;
private Integer age;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", age=" + age +
'}';
}
}
3. 編寫持久層接口
在dao下建立AccountDao接口
代碼如下(示例):
@Repository
public interface AccountDao {
@Insert(value="insert into account (name,age) values (#{name},#{age})")
public void saveAccount(Account account);
@Select("select * from account")
public List<Account> findAll();
}
4. 編寫業務層接口及其實作類
1. 接口部分(AccountService)代碼如下(示例):
public interface AccountService {
public void saveAccount(Account account);
public List<Account> findAll();
}
2. 接口實作類部分(AccountServiceImpl)代碼如下(示例):
@Service("accountService")
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao accountDao;
public void saveAccount(Account account) {
}
public List<Account> findAll() {
System.out.println("-----//業務層//----");
return accountDao.findAll();
}
}
5.編寫controller
在controller檔案夾下建立AccountController類
代碼如下(示例):
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService accoutService;
/**
* 查詢所有的資料
* @return
*/
@RequestMapping("/findAll")
public String findAll() {
System.out.println("表現層...");
List<Account> list = accoutService.findAll();
for (Account account : list) {
System.out.println(account);
}
return "list";
}
}
提醒: 粘貼時不要覆寫自己生成的package ;粘貼代碼後需要自己導包哦(快捷鍵alt+enter)
6.編寫前端html
注意不是jsp檔案,需将預設生成的jsp改為html
- 在index.html中添加查詢a标簽
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<a href="account/findAll">查詢使用者</a>
</body>
</html>
- 在views檔案夾下建立list.html(擷取回報)
<html>
<body>
<h2>Hello World!</h2>
</body>
</html>
四、運作測試
1. 部署項目
![在這裡插入圖檔描述](https://img-blog.csdnimg.cn/2020090413561034.png#pic_left)
2. 運作項目
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總結
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