搭建SSM開發環境
阿新 • • 發佈:2018-12-17
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匯入jar包
- 利用maven進行包管理,不用手動一個個新增需要的jar包,開發便利快捷
- pom.xml:
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<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.enpong</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.version>5.1.1.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.2.3</version> </dependency> <!-- Spring --> <!-- 1)包含Spring 框架基本的核心工具類。Spring 其它元件要都要使用到這個包裡的類,是其它元件的基本核心 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <!-- 2)這個jar 檔案是所有應用都要用到的,它包含訪問配置檔案、建立和管理bean 以及進行Inversion of Control / Dependency Injection(IoC/DI)操作相關的所有類。如果應用只需基本的IoC/DI 支援,引入spring-core.jar 及spring-beans.jar 檔案就可以了。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <!-- 3)這個jar 檔案為Spring 核心提供了大量擴充套件。可以找到使用Spring ApplicationContext特性時所需的全部類,JDNI 所需的全部類,instrumentation元件以及校驗Validation 方面的相關類。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <!-- 4) 這個jar 檔案包含對Spring 對JDBC 資料訪問進行封裝的所有類。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <!-- 5) 為JDBC、Hibernate、JDO、JPA等提供的一致的宣告式和程式設計式事務管理。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <!-- 6)Spring web 包含Web應用開發時,用到Spring框架時所需的核心類,包括自動載入WebApplicationContext特性的類、Struts與JSF整合類、檔案上傳的支援類、Filter類和大量工具輔助類。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <!-- 7)包含SpringMVC框架相關的所有類。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- 8)Spring test 對JUNIT等測試框架的簡單封裝 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> <!-- spring依賴的其他配置 --> <!-- Servlet web --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.1</version> </dependency> <!-- json解析 --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.7</version> </dependency> <!-- Map工具類 對標準java Collection的擴充套件 spring-core.jar需commons-collections.jar --> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.2.2</version> </dependency> <!-- Dao Mybatis --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.6</version> </dependency> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.2</version> </dependency> <!-- 資料庫 --> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.12</version> </dependency> <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 --> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> </dependencies> <build> <finalName>ssm</finalName> <plugins> <plugin> <!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-compiler-plugin --> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.0</version> <configuration> <source>1.8</source> <target>1.8</target> <encoding>UTF8</encoding> </configuration> </plugin> </plugins> </build> </project>
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配置Web.xml
- web.xml:
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<!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> <!-- 指定spring配置檔案位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-*.xml</param-value> </context-param> <!-- 註冊字符集過濾器 --> <filter> <filter-name>CharacterEncodingFilter</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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 註冊ServletContext 監聽器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 註冊中央排程器 --> <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> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
- 指定spring配置檔案位置
- 這裡指定的配置檔案,讓tomcat在啟動時根據spring配置檔案建立spring容器;
- 由於spring配置檔案根據功能模組劃分,拆分為多個配置檔案(spring-*.xml)
- 註冊ServletContext監聽器
- 註冊ServletContext監聽器的實現類ContextLoaderListener;用於建立spring容器以及將建立好的spring容器物件放入到ServletContext的域屬性空間,保證spring容器的唯一性。
- 註冊字符集過濾器
- 用於解決請求引數中攜帶的中文亂碼問題
- 註冊中央排程器(Dispatcher)