上周一个做php的朋友让我帮忙搭建一个java的web工程，我想挺简单的，但是自己搭的时候出了写问题，觉着需要吧搭建过程记录下来，免得自己忘了。主要记录一下spring的配置，其他的就忽略了
一、安装jdk
二、安装maven
三、新建项目
四、新建模块，依赖如下：
<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>tang.web.com</groupId> <artifactId>demo</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>demo Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <!-- spring版本号 --> <spring.version>4.2.5.RELEASE</spring.version> <!-- mybatis版本号 --> <mybatis.version>3.2.8</mybatis.version> <!-- log4j日志包版本号 --> <slf4j.version>1.7.18</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <!-- 添加jstl依赖 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 添加spring核心依赖 --> <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-context</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-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- 添加mybatis依赖 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- 添加mybatis/spring整合包依赖 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- 添加mysql驱动依赖 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.18</version> </dependency> <!-- 添加数据库连接池依赖 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.2.2</version> </dependency> <!-- 添加fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.1</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.8.1</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.8.1</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-web</artifactId> <version>2.0.2</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency> <!-- https://mvnrepository.com/artifact/log4j/log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> </dependencies> <build> <finalName>demo</finalName> <plugins> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.5</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin> </plugins> </build> </project>
五、在resource中创建spring的xml文件，名字自己命名，主要用来配置spring的上下文，其中数据库mybatis的配置可以在独立的mybatis.xml中配置，也可在此文件中配置，看个人需求，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: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-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!--suppress SpringFacetInspection --> <context:component-scan base-package="com.tang.apps"></context:component-scan> <context:property-placeholder location="classpath:*.properties" file-encoding="UTF-8"/> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driverClasss}"/> <property name="url" value="${jdbcUrl}"/> <property name="username" value="${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> <!-- 这里的dataSource要与sqlSessionFactory的dataSource一致，否则事务无效 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="mapperLocations" value="classpath:mapping/**/*.xml"></property> <property name="configLocation" value="classpath:mybatis.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.tang.apps.dao"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> </beans>
六、创建mybatis.xml文件
<?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> <!-- 配置mybatis的缓存，延迟加载等等一系列属性 --> <settings> <!-- 全局映射器启用缓存 --> <setting name="cacheEnabled" value="true" /> <!-- 查询时，关闭关联对象即时加载以提高性能 --> <setting name="lazyLoadingEnabled" value="true" /> <!-- 设置关联对象加载的形态，此处为按需加载字段(加载字段由SQL指 定)，不会加载关联表的所有字段，以提高性能 --> <setting name="aggressiveLazyLoading" value="false" /> <!-- 对于未知的SQL查询，允许返回不同的结果集以达到通用的效果 --> <setting name="multipleResultSetsEnabled" value="true" /> <!-- 允许使用列标签代替列名 --> <setting name="useColumnLabel" value="true" /> <!-- 允许使用自定义的主键值(比如由程序生成的UUID 32位编码作为键值)，数据表的PK生成策略将被覆盖 --> <!-- <setting name="useGeneratedKeys" value="true" /> --> <!-- 给予被嵌套的resultMap以字段-属性的映射支持 --> <setting name="autoMappingBehavior" value="FULL" /> <!-- 对于批量更新操作缓存SQL以提高性能 --> <!--<setting name="defaultExecutorType" value="BATCH" /> --> <!-- 数据库超过25000秒仍未响应则超时 --> <setting name="defaultStatementTimeout" value="25000" /> <setting name="logImpl" value="LOG4J2"/> </settings> <!-- 全局别名设置，在映射文件中只需写别名，而不必写出整个类路径 --> <typeAliases> <!--<typeAlias alias="UIParam" type="com.nonobank.apps.entity.UIParam"/>--> <!--<typeAlias alias="UIMethod" type="com.nonobank.apps.entity.UIMethod"/>--> <!--<typeAlias alias="UIPage" type="com.nonobank.apps.entity.UIPage"/>--> <!--<typeAlias alias="UIScript" type="com.nonobank.apps.entity.UIScript"/>--> </typeAliases> <!-- 非注解的sql映射文件配置，如果使用mybatis注解，该mapper无需配置，但是如果mybatis注解中包含@resultMap注解，则mapper必须配置，给resultMap注解使用 --> <mappers> <!--<mapper resource="com/nonobank/apps/mapping/InterfaceDefinitionMapper.xml" />--> <!--<mapper resource="com/nonobank/apps/mapper/UIPage.xml" /> --> <!--<mapper resource="com/nonobank/apps/mapper/UIMethod.xml" /> --> <!--<mapper resource="com/nonobank/apps/mapper/UIParam.xml" /> --> <!--<mapper resource="com/nonobank/apps/mapper/UIScript.xml" />--> </mappers> </configuration>
七、创建spring servlet.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" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" xmlns:util="http://www.springframework.org/schema/util" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:beans="http://www.springframework.org/schema/beans" 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-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd" default-lazy-init="true"> <mvc:default-servlet-handler /> <!-- 添加注解驱动 --> <mvc:annotation-driven /> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="order" value="1"/> <property name="locations"> <list> <value>classpath:jdbc.properties</value> </list> </property> <property name="ignoreUnresolvablePlaceholders" value="true" /> <!--<property name="location" value="classpath:jdbc.properties" />--> </bean> <!-- <context:annotation-config></context:annotation-config> --> <!-- 默认扫描的包路径 --> <context:component-scan base-package="com.tang.apps.controller" /> <!-- 该 BeanPostProcessor 将自动对标注 @Autowired 的 Bean 进行注入 --> <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" /> <!-- 视图解析器 --> <bean class="org.springframework.web.servlet.view.BeanNameViewResolver"> <property name="order" value="1" /> </bean> <bean id="mappingJackson2HttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="objectMapper"> <bean id="jacksonObjectMapper" class="com.fasterxml.jackson.databind.ObjectMapper"> <property name="dateFormat"> <bean class="java.text.SimpleDateFormat"> <constructor-arg type="java.lang.String" value="yyyy-MM-dd HH:mm:ss" /> </bean> </property> <property name="serializationInclusion"> <!-- 把枚举类型转为一个bean才能注入, 不序列化空值属性 --> <!-- <value type="com.fasterxml.jackson.annotation.JsonInclude.Include">NON_NULL</value> --> <util:constant static-field="com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL" /> </property> </bean> </property> <property name="supportedMediaTypes"> <list> <value>application/json;charset=UTF-8</value> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <property name="messageConverters"> <list > <ref bean="mappingJackson2HttpMessageConverter" /> </list> </property> </bean> <!-- 文件上传配置 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默认编码 --> <property name="defaultEncoding" value="UTF-8"/> <!-- 上传文件大小限制为31M，31*1024*1024 --> <property name="maxUploadSize" value="32505856"/> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="4096"/> </bean> </beans>
八、配置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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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> <!-- 加载Spring容器配置 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--spring log4j监听器--> <listener> <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:application.xml</param-value> </context-param> <context-param> <param-name>isLog4jAutoInitializationDisabled</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>classpath:log4j2.xml</param-value> </context-param> <!-- spring MVC的核心就是DispatcherServlet，使用springMVC的第一步就是将下面的servlet放入web.xml servlet-name属性非常重要，默认情况下，DispatchServlet会加载这个名字-servlet.xml的文件，如下，就会加载 dispather-servlet.xml，也是在WEN-INF目录下。 --> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 设置dispatchservlet的匹配模式，通过把dispatchservlet映射到/，默认servlet会处理所有的请求，包括静态资源 --> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 字符集过滤器 --> <!-- <filter> <description>check request for service token</description> <filter-name>CustomFilter</filter-name> <filter-class>com.nonobank.apps.errorCode.CustomFilter</filter-class> </filter> <filter-mapping> <filter-name>CustomFilter</filter-name> <url-pattern>/*</url-pattern> </filter-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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
九、配置jdbc.properties
driverClasss=com.mysql.jdbc.Driver jdbcUrl=jdbc:mysql://192.168.1.51:3306/dev_branch_platform?useUnicode=yes&characterEncoding=UTF8&allowMultiQueries=true username=root password=123456 #定义初始连接数 initialSize=0 #定义最大连接数 maxActive=20 #定义最大空闲 maxIdle=20 #定义最小空闲 minIdle=1 #定义最长等待时间 maxWait=60000
十、项目总体结构如下：
