spring+struts环境搭建

当pom.xml出现问题时，就是本地的仓库出现了问题（C:\Users\计算机名.m2\repository）删除出错的jar包
配置进spring中需要给struts指定spring容器位置，在web.xml中写入监听

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <listener>
        <listener-class>
        org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>

1. 追加spring，jar包，spring-jdbc，aop，web，test进入maven仓库中
2. 写一个实体类和要查询的表字段有一样的属性值对应
3. 编写该表的dao接口，和实现类，注入jdbctemplate进行操作
   dao接口实现类

@Repository("examDao")
public class ExamPaPreDaoImpl implements ExamPaPreDao {
@Resource
private JdbcTemplate jdbcTemplate;
    @Override
    public List getAll() {

        return jdbcTemplate.query("select * from exam_paper", new ExamPaperMapper());
    }

    @Override
    public ExamPaper getByPaperId(int paperId) {
        Object[] obj ={paperId};
        return (ExamPaper) jdbcTemplate.query("select * from exam_paper where paper_id=? ",obj  ,new ExamPaperMapper());
    }

}

    *Dao返回值实体对象Mapper类*

public class ExamPaperMapper implements RowMapper<ExamPaper> {

    @Override
    public ExamPaper mapRow(ResultSet rs, int rowNum) throws SQLException {
        ExamPaper ep= new ExamPaper();
        ep.setPaperId(rs.getInt("paper_id"));
        ep.setQuestionId(rs.getInt("question_id"));
        return ep;
    }

}

1. 配置JdbcNoteDao组件，application，spring.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:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
        http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.1.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd">

    <!-- 扫描Action -->
    <context:component-scan base-package="cn.xdl.action"/>
    <!-- 扫描Dao -->
    <context:component-scan base-package="cn.xdl.dao"/>

    <!-- JdbcTemplate对象 -->
    <bean id="template" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="c3p0"></property>
    </bean>

    <!-- c3p0 -->
    <bean id="c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="root"></property>
        <property name="password" value="1234"></property>
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/studyonline?useUnicode=true&amp;characterEncoding=utf8"></property>
    </bean>

</beans>

1. 测试类

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:applicationContext.xml"})
public class TestDao {

    @Resource
    private ExamPaperDao examDao;

    @Test
    public void test1(){
        List list = examDao.getAll();
        System.out.println(list);
    }

}