2020年3月12日21:20:34html
記錄搭建過程 溫故知新java
目錄以下mysql
- 1.搭建SSM框架環境準備包
- eclipse tomcat maven mysql
2.建立Maven項目（便於管理若干jar包）
- 關於maven項目是什麼請自行百度，由於我也講不清楚，不誤人子弟了就，簡單介紹操做步驟
- File ----->NEW----->(有的同窗能夠看到Maven Project 看不到的往下繼續)----->Other （點擊other後）
- 選擇maven project 選項 一路next 後 你就糾結了 在這裏
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選擇 webapp 後 next web
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maven項目中的三個必要字段 group id 通常來說經過pom.xml中的 dependency 引入的jar包可經過這三個字段獲取到spring
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group id ： 暫且理解爲包名 ps：記一下在後邊配置文件中用的到 sql
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artifactId ： 項目名數據庫
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version ： 版本apache
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至此第二步驟完成json
- 3.爲項目增長 library 應對某些同鞋 Index.jsp報錯
- 1.右擊你的項目根目錄-----》properties 或者 Build Path ----->Configure Build Path...
- 2.
- 3.
- 4.
- 選擇合適的tomcat版本
- 4.創建以下文件目錄結構
- 配置文件目錄
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第一個箭頭： mvc操做用到的實體類 控制器 映射文件 等api
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第二個箭頭： 各個配置文件
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第三個箭頭：頁面存放的位置 測試用到的jsp頁面寫在了這裏面
- 配置文件目錄
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5.配置文件的內容
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jdbc.properties 數據庫鏈接參數賦值
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
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log4j.properties 日誌配置文件
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#\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
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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 <!-- 設置別名 --> 7 <typeAliases> 8 <package name="com.上文中須要你記得.ssm.pojo" /> 9 </typeAliases> 10 </configuration>
- spring-mvc.xml
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<?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"> <!-- 自動掃描該包，使SpringMVC認爲包下用了@controller註解的類是控制器 --> <context:component-scan base-package="com.你須要記錄的.ssm.controller" /> <!-- 註冊MVC註解驅動 --> <mvc:annotation-driven /> <!-- 靜態資源可訪問的設置方式 --> <mvc:default-servlet-handler /> <!--避免IE執行AJAX時，返回JSON出現下載文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- 啓動SpringMVC的註解功能，完成請求和註解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON轉換器 --> </list> </property> </bean> <!-- 定義跳轉的文件的先後綴 ，視圖模式配置 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 這裏的配置個人理解是自動給後面action的方法return的字符串加上前綴和後綴，變成一個 可用的url地址 --> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> <!-- 配置文件上傳，若是沒有使用文件上傳能夠不用配置，固然若是不配，那麼配置文件中也沒必要引入上傳組件包 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默認編碼 --> <property name="defaultEncoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 內存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> </beans>
- spring-mybatis.xml
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<?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"> <!-- 自動掃描 --> <context:component-scan base-package="com.你須要記錄的.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}" /> <!-- 初始化鏈接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 鏈接池最大數量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 鏈接池最大空閒 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 鏈接池最小空閒 --> <property name="minIdle" value="${minIdle}"></property> <!-- 獲取鏈接最大等待時間 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合，不須要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自動掃描mapping.xml文件 --> <property name="mapperLocations" value="classpath*:com/你須要記錄的/ssm/mapping/*.xml"></property> <property name="configLocation" value="classpath:mybatis-config.xml"></property> </bean> <!-- DAO接口所在包名，Spring會自動查找其下的類 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.gzk.ssm.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事務管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans>
- 重點的pom.xml 與 web.xml pom.xml位於項目根目錄下
- pom.xml
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.根據項目生成的.ssm</groupId> <artifactId>ssm</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>ssm Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- Spring 版本號 --> <spring.version>4.0.2.RELEASE</spring.version> <!-- Mybatis 版本號 --> <mybatis.version>3.2.6</mybatis.version> <!-- loh4j日誌文件管理包版本 --> <slf4j.version>1.7.7</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- Spring核心包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${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>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.2.2</version> </dependency> <!-- JSTL標籤類 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日誌文件管理包 --> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <!-- 格式化對象，方便輸出日誌 --> <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> <!-- 上傳組件包 --> <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> <!-- 若是不添加此節點mybatis的mapper.xml文件都會被漏掉。 --> <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
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<?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> <!-- 編碼過濾器 --> <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監聽器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止Spring內存溢出監聽器 --> <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> <!-- 此處能夠能夠配置成*.do，對應struts的後綴習慣 --> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> </web-app>
- 至此全部的配置文件都已準備就緒
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- 6 建立相應的數據庫，測試表
- 7.編寫，或生成對應表的控制器，映射文件等
- UserController
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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"; } }
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- UserService
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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; } }
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- UserMapper
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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); }
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- UserMapper.xml
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<?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>
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- User 此實體類與數據庫中測試表中字段應該一致
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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; } }
- 至此教程結束，有問題請留評論
- ps 2020年3月16日20:27:31 補充一下tomcat啓動本項目的方法
- eclipse中建立tomcat服務 在 Service中右鍵 New ---》Service
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選擇合適的tomcat 版本 下方 Service name自定義一個服務名稱 ，選擇Service runtime Environment 而後選擇本身相應的項目文件夾就能夠了
- 服務建立完成之後，在左側文件目錄下找到相應的Service配置文件
- 打開server.xml 在最底部增長相應的配置
- 至此
- maven項目須要在pom.xml配置完成，設置完成server.xml後須要進行 maven install 操做具體以下
- 1.右鍵你的項目 個人例如 ssm
- 2.找到run as 那個綠色的按鈕 ---------》右側出現的選項中找到 maven-install
- 3.若是install 過程當中報錯，須要第二部 中找到 maven-clean 而後在頂部 Project 中找到 Clean 點擊之後選擇你的項目，等待一會，而後在install 操做。
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install成功之後就能夠點擊啓動按鈕，進行項目啓動了。
- 啓動成功後在瀏覽器中 寫入請求路徑 ：例如 http://localhost:你的項目端口號/Controller的@RequestMapping/方法的@RequestMapping?id=參數值
- 至此
- UserController