ssm框架搭建并演示获取json字符串
为方便起见，使用oracle自带的scott账户中的emp表作为数据源。
预期效果：
1.输入URL：http://localhost:8888/ssm/getEmp?empno=7369
2.返回结果如下：
实现过程：
1.引入所需jar包：
<dependencies>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/taglibs/standard -->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.9</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.9</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.9</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- mybatis-generator-core核心jar包 -->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
<!-- c3p0连接池 --><!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency> <!-- 添加连接Oracle的jar包 -->
<!-- https://mvnrepository.com/artifact/ojdbc/ojdbc -->
<dependency>
<groupId>ojdbc</groupId>
<artifactId>ojdbc</artifactId>
<version>14-10gR3</version>
</dependency>
<!-- Spring4.3.3 -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/net.sf.json-lib/json-lib-ext-spring
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib-ext-spring</artifactId>
<version>1.0.2</version>
</dependency>-->
<!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-mapper-asl -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-mapper-lgpl -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-lgpl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-asl -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-lgpl -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-lgpl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 与spring-aop相关的jar包 -->
<!-- https://mvnrepository.com/artifact/aopalliance/aopalliance -->
<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.9</version>
</dependency>
<!-- Junit -->
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
</dependency>
<!-- JSR303验证 -->
<!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.2.4.Final</version>
</dependency> <!-- 重写equals和hashCode方法的包 -->
<!-- https://mvnrepository.com/artifact/commons-lang/commons-lang -->
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<!-- tiles页面布局 -->
<!-- https://mvnrepository.com/artifact/org.apache.tiles/tiles-jsp -->
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-jsp</artifactId>
<version>3.0.7</version>
</dependency>
<!-- log4j -->
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-ext -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-ext</artifactId>
<version>1.5.10</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.10</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/jcl-over-slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.5.10</version>
</dependency>
<!-- slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.5.10</version>
</dependency>
<!-- AspectJ -->
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.9</version>
</dependency>
<!-- SpringMVC文件上传 -->
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency> </dependencies>
pom.xml
2.创建所需目录：
3.使用MyBatis-generator生成POJO和mapper
3.1为pojo添加@Component注解
3.2为mapper接口添加@repository注解
4.在resources目录中放置log4j配置文件
log4j.rootLogger=DEBUG,Console #Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n #sql show
log4j.logger.com.ibatis=DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG # MyBatis logging configuration...
#log4j.logger.com.yan.ssm.dao.mapper=TRACE
log4j.properties
5.在resources目录中放置数据库配置文件
#jdbc.driverClassName=com.mysql.jdbc.Driver
#jdbc.url=jdbc:mysql://localhost:3306:mysql
jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl
jdbc.username=scott
jdbc.password=orcl
jdbc.initialPoolSize=20
jdbc.maxPoolSize=100
jdbc.minPoolSize=10
jdbc.maxIdleTime=600
jdbc.acquireIncrement=5
jdbc.maxStatements=5
jdbc.idleConnectionTestPeriod=60
dataSource.properties
6.配置MyBatis配置文件
6.1配置log4j
<settings>
<!-- 使用Log4J输出日志 -->
<setting name="logImpl" value="LOG4J"/>
<!-- 配置全局的映射器启用或禁用缓存 -->
<setting name="cacheEnabled" value="false"/>
<setting name="lazyLoadingEnabled" value="true"/>
<setting name="defaultStatementTimeout" value="30000"/>
</settings>
6.2定义别名
<!-- 定义别名 -->
<typeAliases>
<package name="com.yan.issm.pojo"/>
</typeAliases>
6.3定义mapper（和此例中的7.4+7.5起同样作用，此处其实可以不配置，统一交由Spring管理）
<mappers>
<!-- mapper和package两种方式二选一
<mapper resource="com/yan/issm/dao/mapper/EmpMapper.xml"/>
<mapper resource="com/yan/issm/dao/mapper/DeptMapper.xml"/> -->
<package name="com.yan.issm.dao.mapper"/>
</mappers>
6.4MyBatis配置全文
<?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>
<settings>
<!-- 使用Log4J输出日志 -->
<setting name="logImpl" value="LOG4J"/>
<!-- 配置全局的映射器启用或禁用缓存 -->
<setting name="cacheEnabled" value="false"/>
<setting name="lazyLoadingEnabled" value="true"/>
<setting name="defaultStatementTimeout" value="30000"/>
</settings>
<!-- 定义别名 -->
<typeAliases>
<package name="com.yan.issm.pojo"/>
</typeAliases> <mappers>
<mapper resource="com/yan/issm/dao/mapper/EmpMapper.xml"/>
<mapper resource="com/yan/issm/dao/mapper/DeptMapper.xml"/>
</mappers>
</configuration>
sqlMapConfig.xml
7.配置Spring上下文
7.1配置beans属性
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:conditional="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
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/conditional
http://www.springframework.org/schema/conditional/spring-conditional.xsd">
...
</beans>
7.2配置自动扫描的包
<context:component-scan base-package="com.yan.issm"></context:component-scan>
7.3导入数据库配置文件并读取
<context:property-placeholder location="classpath:dataSource.properties"/>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 指定连接数据库的驱动-->
<property name="driverClass" value="${jdbc.driverClassName}"/>
<!-- 指定连接数据库的URL-->
<property name="jdbcUrl" value="${jdbc.url}"/>
<!-- 指定连接数据库的用户名-->
<property name="user" value="${jdbc.username}"/>
<!-- 指定连接数据库的密码-->
<property name="password" value="${jdbc.password}"/>
<!-- 指定连接池中保留的最大连接数. Default:15-->
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"/>
<!-- 指定连接池中保留的最小连接数-->
<property name="minPoolSize" value="${jdbc.minPoolSize}"/>
<!-- 指定连接池的初始化连接数 取值应在minPoolSize 与 maxPoolSize 之间.Default:3-->
<property name="initialPoolSize" value="${jdbc.initialPoolSize}"/>
<!-- 最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。 Default:0-->
<property name="maxIdleTime" value="${jdbc.maxIdleTime}"/>
<!-- 当连接池中的连接耗尽的时候c3p0一次同时获取的连接数. Default:3-->
<property name="acquireIncrement" value="${jdbc.acquireIncrement}"/>
<!-- JDBC的标准,用以控制数据源内加载的PreparedStatements数量。
但由于预缓存的statements属于单个connection而不是整个连接池所以设置这个参数需要考虑到多方面的因数.如果maxStatements与maxStatementsPerConnection均为0,则缓存被关闭。Default:0-->
<property name="maxStatements" value="${jdbc.maxStatements}"/>
<!-- 每60秒检查所有连接池中的空闲连接.Default:0 -->
<property name="idleConnectionTestPeriod" value="${jdbc.idleConnectionTestPeriod}"/>
</bean>
7.3配置MyBatis的SqlSessionFactory
<!-- 配置MyBatis的SqlSessionFactory，并且定义其scope为prototype-多例模式 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" scope="prototype">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
</bean>
7.4配置SQLSessionTemplate
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
</bean>
7.5配置自动扫描mapper
<!-- 采用自动扫描方式创建mapper bean -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.yan.issm.dao.mapper"/>
<property name="sqlSessionTemplateBeanName" value="sqlSessionTemplate"/>
<property name="annotationClass" value="org.springframework.stereotype.Repository"/>
</bean>
7.6applicationContext配置全文
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:conditional="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
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/conditional
http://www.springframework.org/schema/conditional/spring-conditional.xsd">
<!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.yan.issm"></context:component-scan>
<!-- 导入配置文件 -->
<context:property-placeholder location="classpath:dataSource.properties"/>
<!-- <aop:aspectj-autoproxy proxy-target-class="true"/> -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 指定连接数据库的驱动-->
<property name="driverClass" value="${jdbc.driverClassName}"/>
<!-- 指定连接数据库的URL-->
<property name="jdbcUrl" value="${jdbc.url}"/>
<!-- 指定连接数据库的用户名-->
<property name="user" value="${jdbc.username}"/>
<!-- 指定连接数据库的密码-->
<property name="password" value="${jdbc.password}"/>
<!-- 指定连接池中保留的最大连接数. Default:15-->
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"/>
<!-- 指定连接池中保留的最小连接数-->
<property name="minPoolSize" value="${jdbc.minPoolSize}"/>
<!-- 指定连接池的初始化连接数 取值应在minPoolSize 与 maxPoolSize 之间.Default:3-->
<property name="initialPoolSize" value="${jdbc.initialPoolSize}"/>
<!-- 最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。 Default:0-->
<property name="maxIdleTime" value="${jdbc.maxIdleTime}"/>
<!-- 当连接池中的连接耗尽的时候c3p0一次同时获取的连接数. Default:3-->
<property name="acquireIncrement" value="${jdbc.acquireIncrement}"/>
<!-- JDBC的标准,用以控制数据源内加载的PreparedStatements数量。
但由于预缓存的statements属于单个connection而不是整个连接池所以设置这个参数需要考虑到多方面的因数.如果maxStatements与maxStatementsPerConnection均为0,则缓存被关闭。Default:0-->
<property name="maxStatements" value="${jdbc.maxStatements}"/>
<!-- 每60秒检查所有连接池中的空闲连接.Default:0 -->
<property name="idleConnectionTestPeriod" value="${jdbc.idleConnectionTestPeriod}"/>
</bean>
<!-- 配置MyBatis的SqlSessionFactory，并且定义其scope为prototype-多例模式 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" scope="prototype">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
</bean>
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
</bean>
<!-- 采用自动扫描方式创建mapper bean -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.yan.issm.dao.mapper"/>
<property name="sqlSessionTemplateBeanName" value="sqlSessionTemplate"/>
<property name="annotationClass" value="org.springframework.stereotype.Repository"/>
</bean>
</beans>
applicationContext
8.配置SpringMVC
8.1配置自动扫描
<mvc:annotation-driven/>
8.2配置自动扫描的包名（必须配，与上下文中的有区别）
<context:component-scan base-package="com.yan.ssm.controller"/>
8.3配置JSON转换器
<!-- 配置json转换器 -->
<bean id="jsonMessageConverters" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
8.4配置JSON视图拦截器
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<!-- JSON视图拦截器，碰到ResponseBody会触发 -->
<ref bean="jsonMessageConverters"/>
</list>
</property>
</bean>
8.5配置视图和静态资源访问（本例不涉及）
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"></property>
<property name="suffix" value=".jsp"></property>
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
</bean>
<!--添加访问静态资源的功能 -->
<mvc:resources location="/resources/" mapping="/resources/**"></mvc:resources>
8.6spring-servlet配置全文
<?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:p="http://www.springframework.org/schema/p"
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<mvc:annotation-driven/>
<context:component-scan base-package="com.yan.issm.controller"/>
<!-- 配置json转换器 -->
<bean id="jsonMessageConverters" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<!-- JSON视图拦截器，碰到ResponseBody会触发 -->
<ref bean="jsonMessageConverters"/>
</list>
</property>
</bean> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"></property>
<property name="suffix" value=".jsp"></property>
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
</bean>
<!--添加访问静态资源的功能 -->
<mvc:resources location="/resources/" mapping="/resources/**"></mvc:resources>
</beans>
Spring-servlet.xml
9.配置web.xml
9.1配置log4j上下文
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
9.2配置spring-log4j监听器
<!-- 定义LOG4J监听器 -->
<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>
9.3配置加载指定位置的上下文配置文件
<!-- 加载指定位置的上下文配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
9.4配置DispatcherServlet
<servlet>
<servlet-name>Spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 表示启动容器时初始化该servlet -->
<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>
9.5配置DispatcherServlet映射规则
<servlet-mapping>
<servlet-name>Spring</servlet-name>
<!-- 表示哪些请求需要交给Spring Web MVC处理，/是用来定义默认servlet映射的。也可以如“*.html”表示拦截所有以html为扩展名的请求 -->
<url-pattern>/*</url-pattern>
</servlet-mapping>
9.6配置字符集过滤器（纯英文，本例不涉及）
<!-- 使用spring解决中文乱码 -->
<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>
</filter> <filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
9.7web.xml配置全文
<?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>ssm</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 定义LOG4J监听器 -->
<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>
<!-- 加载指定位置的上下文配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<servlet>
<servlet-name>Spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 表示启动容器时初始化该servlet -->
<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>
<servlet-mapping>
<servlet-name>Spring</servlet-name>
<!-- 表示哪些请求需要交给Spring Web MVC处理，/是用来定义默认servlet映射的。也可以如“*.html”表示拦截所有以html为扩展名的请求 -->
<url-pattern>/*</url-pattern>
</servlet-mapping>
<!-- 使用spring解决中文乱码 -->
<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>
</filter> <filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
web.xml
10.完成service层
10.1创建EmpService接口
Emp selectByPrimaryKey(Short empno);
10.2实现接口EmpServiceImpl
@Service
public class EmpServiceImpl implements EmpService {
@Autowired
EmpMapper empMapper; @Override
public Emp selectByPrimaryKey(Short empno) {
return empMapper.selectByPrimaryKey(empno);
}
}
11.完成Controller层
@Controller
public class EmpController {
@Autowired
EmpService empService; @RequestMapping(value="/getEmp",method=RequestMethod.GET)
@ResponseBody
public Emp getEmp(short empno)
{
return empService.selectByPrimaryKey(empno);
}
}
ssm框架搭建并演示获取json字符串的更多相关文章
- SSM 框架搭建
SSM框架搭建(Spring.SpringMVC.Mybatis) 一:基本概念 Spring : Spring是一个开源框架,Spring是于2003 年兴起的一个轻量级的Java 开发框 ...
- 实习小结（二）--- SSM框架搭建
SSM项目框架搭建 前几天做了一个学生信息管理的项目,使用纯控制台输入,查询数据库,将信息在控制台中打印,功能完善得差不多之后,老师让将这个项目移植到Web中,使用Spring+SpringMVC+M ...
- .Net Core3.0 WebApi 项目框架搭建 三:读取appsettings.json
.Net Core3.0 WebApi 项目框架搭建:目录 appsettings.json 我们在写项目时往往会把一些经常变动的,可能会变动的参数写到配置文件.数据库中等可以存储数据且方便配置的地方 ...
- SSM框架搭建web服务器实现登录功能(Spring+SpringMVC+Mybatis)
初学java EE,虽然知道使用框架会使开发更加便捷高效,但是对于初学者来说,感到使用框架比较迷惑,尤其是各种jar包的引用.各种框架的配置.注解的使用等等. 最好的学习方法就是实践,于是下载了一个现 ...
- SSM框架搭建教程（从零开始，图文结合）
1.准备 IntelliJ IDEA Tomcat JDK Maven mysql spring.springmvc.mybatis 了解 现在假设如上条件你都具备,那么通过我这篇博客 你一定可以整合 ...
- idea ssm框架搭建
1.分享一篇完整的ssm框架搭建连接 大牛博客:https://www.cnblogs.com/toutou/p/ssm_spring.html#_nav_0 2.我的搭建的完整项目连接,可以进入我的 ...
- ssm框架搭建整合测试
下载各种jar包 mybatis下载 https://github.com/mybatis/mybatis-3/releases mysql驱动下载 http://mvnrepository.com/ ...
- SSM框架搭建详细解析
总结了一下搭建SSM框架流程,在以后用到的时候方便回头使用. 使用工具:MyEclipse 2015:Tomcat 8版本:jdk1.8版本. 首先: 1:创建一个WebProject项目,jdk1. ...
- wemall app商城源码中基于JAVA通过Http请求获取json字符串的代码
wemall-mobile是基于WeMall的Android app商城,只需要在原商城目录下上传接口文件即可完成服务端的配置,客户端可定制修改.分享其中关于通过Http请求获取json字符串的代码供 ...
随机推荐
- Lattice系列FPGA入门相关0(Lattice与Altera、Xilinx对比及入门)
需求说明:Lattice系统FPGA入门 内容 :Lattice与Altera.Xilinx对比 来自 :时间的诗 1.Lattice与Altera.Xilinx对比 latt ...
- [cocos2dx笔记005]一个字符串管理配置类
在用vs开发cocos2dx过程中.要显示的中文,要求是UTF-8格式的才干正常显示出来.但VS通常是ANSI格式保存,这样,在代码中写入的中文字符串,执行后.显示的就是乱码. 为了正确显示中文.或支 ...
- 【Javascript】Javascript横向/纵向合并单元格TD
> 需求是这样滴(>_<) 在报表系统中,涉及“HTML的TD单元格的合并”恐怕为数不少. 比如,从DB查得数据并经过后台的整理后,可能是这样的: Table1 JOB TO ...
- 部署hadoop2.7.2 集群 基于zookeeper配置HDFS HA+Federation
转自:http://www.2cto.com/os/201605/510489.html hadoop1的核心组成是两部分,即HDFS和MapReduce.在hadoop2中变为HDFS和Yarn.新 ...
- Linux shell 执行修改配置文件中的内容
在开发的过程中可能Linux环境不一致需要适应本地环境的HOME目录,可以通过脚本来修改配置文件内容,写一个test.sh的脚本 在脚本里写入以下命令 sed -i “s#ftfts_com_serv ...
- NOR FLASH驱动程序
NOR NAND接口: RAM-Like,引脚多 引脚少,复用容量: 小 1M 2M 3M ...
- u-boot中添加自定义命令
1.u-boot命令机制u-boot中,每个命令都使用一个struct cmd_tbl_s结构体定义,该定义在include/command.h中实现:struct cmd_tbl_s{ char * ...
- RTX——第12章 系统时钟节拍和时间管理
以下内容转载自安富莱电子: http://forum.armfly.com/forum.php 本章节为大家讲解 RTX 操作系统的时钟节拍和时间管理函数,其中时间管理函数是 RTX 的基本函数,初学 ...
- LTDC/DMA2D—液晶显示
本章参考资料:<STM32F4xx 参考手册 2>.<STM32F4xx 规格书>.库帮助文档<stm32f4xx_dsp_stdperiph_lib_um.chm> ...
- opensips安装
主要流程见这个教程吧:感谢大佬 http://blog.csdn.net/u011026329/article/details/50821679 其中 mediaproxy的安装会出错.做如下修改 下 ...