用Spring+jdbc 写一个数据库增删改查

用Spring+Jdbc写一个数据库增删改查

先展示项目结构

ClassBiz.java

package com.gxj.biz;import java.util.List;import com.gxj.model.Clazz;public interface ClassBiz {public boolean InsertClass(Clazz clazz);public boolean DeleteClass(Integer id);public boolean UpdateClass(Clazz clazz);public List<Clazz> SelectClass();}

ClassBizimplement.java

package com.gxj.biz;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Service;import com.gxj.dao.ClassDao;
import com.gxj.model.Clazz;
@Service("classbiz")
public class ClassBizimplement implements ClassBiz {@Resourceprivate ClassDao  dao;@Overridepublic boolean InsertClass(Clazz clazz) {// TODO Auto-generated method stubboolean flag = false;int res = dao.InsertClass(clazz);if(res>0) {flag = true;}return flag;}@Overridepublic boolean DeleteClass(Integer id) {// TODO Auto-generated method stubboolean flag = false;int res = dao.DeleteClass(id);if(res>0) {flag = true;}return flag;}@Overridepublic boolean UpdateClass(Clazz clazz) {// TODO Auto-generated method stubboolean flag = false;int res = dao.UpdateClass(clazz);if(res>0) {flag = true;}return flag;}@Overridepublic List<Clazz> SelectClass() {// TODO Auto-generated method stubList<Clazz> list = dao.SelectClass();return list;}}

ClassDao.java

package com.gxj.dao;import java.util.List;import com.gxj.model.Clazz;public interface ClassDao {public int InsertClass(Clazz clazz);public int DeleteClass(Integer id);public int UpdateClass(Clazz clazz);public List<Clazz> SelectClass();}

ClassDaoimplement.java

package com.gxj.dao;import java.util.List;import javax.annotation.Resource;import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;import com.gxj.model.ClassRowMapper;
import com.gxj.model.Clazz;@Repository
public class ClassDaoimplement implements ClassDao {@Resourceprivate JdbcTemplate jt;@Overridepublic int InsertClass(Clazz clazz) {// TODO Auto-generated method stubString sql = "insert into class(name,size) value(?,?)";int res = jt.update(sql,new Object[] {clazz.getName(),clazz.getSize()});return res;}@Overridepublic int DeleteClass(Integer id) {// TODO Auto-generated method stubString sql = "delete from class where id=?";int res = jt.update(sql,new Object[] {id});return res;}@Overridepublic int UpdateClass(Clazz clazz) {// TODO Auto-generated method stubString sql = "update class set name=?,size=? where id=?";int res = jt.update(sql, new Object[] {clazz.getName(),clazz.getSize(),clazz.getId()});return res;}@Overridepublic List<Clazz> SelectClass() {// TODO Auto-generated method stubString sql = "select * from class";List<Clazz> list = jt.query(sql,new ClassRowMapper());return list;}}

DeleteClass.java

package com.gxj.main;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.gxj.biz.ClassBiz;public class DeleteClass {public static void main(String[] args) {// TODO Auto-generated method stubClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");ClassBiz biz = (ClassBiz) context.getBean("classbiz");boolean flag = biz.DeleteClass(21);System.out.println(flag);}}

InsertClass.java

package com.gxj.main;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.gxj.biz.ClassBiz;
import com.gxj.model.Clazz;public class InsertClass {public static void main(String[] args) {// TODO Auto-generated method stubClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");ClassBiz biz = (ClassBiz) context.getBean("classbiz");Clazz clazz = new Clazz();clazz.setName("ts17061");clazz.setSize(20);boolean flag = biz.InsertClass(clazz);System.out.println(flag);}}

SelectClass.java

package com.gxj.main;import java.util.List;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.gxj.biz.ClassBiz;
import com.gxj.model.Clazz;public class SelectClass {public static void main(String[] args) {// TODO Auto-generated method stubClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");ClassBiz biz = (ClassBiz) context.getBean("classbiz");List<Clazz> list = biz.SelectClass();for(Clazz p:list) {System.out.println(p.getId());System.out.println(p.getName());System.out.println(p.getSize());}}}

UpdateClass.java

package com.gxj.main;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.gxj.biz.ClassBiz;
import com.gxj.model.Clazz;public class UpdateClass {public static void main(String[] args) {// TODO Auto-generated method stubClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");ClassBiz biz = (ClassBiz) context.getBean("classbiz");Clazz clazz = new Clazz();clazz.setId(20);clazz.setName("ts17066");clazz.setSize(55);boolean flag = biz.UpdateClass(clazz);System.out.println(flag);}}

ClassRowMapper.java

package com.gxj.model;import java.sql.ResultSet;
import java.sql.SQLException;import org.springframework.jdbc.core.RowMapper;public class ClassRowMapper implements RowMapper<Clazz> {@Overridepublic Clazz mapRow(ResultSet arg0, int arg1) throws SQLException {// TODO Auto-generated method stubClazz clazz = new  Clazz();clazz.setId(arg0.getInt(1));clazz.setName(arg0.getString(2));clazz.setSize(arg0.getInt(3));return clazz;}}

Clazz.java

package com.gxj.model;public class Clazz {private Integer id;private String name;private Integer size;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getSize() {return size;}public void setSize(Integer size) {this.size = size;}}

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:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.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-3.0.xsd"><context:annotation-config/>   <!-- 开启自动扫描功能 --><context:component-scan base-package="com.gxj.dao"></context:component-scan>
<context:component-scan base-package="com.gxj.biz"></context:component-scan><bean  id="ds"  class="org.apache.commons.dbcp.BasicDataSource"><property name="username"><value>root</value>//数据库的用户名</property><property name="password"><value>123456</value>//数据库的密码</property><property name="url"><value>jdbc:mysql://localhost:3306/itcast</value>//itcast是数据库名</property><property name="driverClassName"><value>com.mysql.jdbc.Driver</value></property></bean><bean  id="jdbctemplate"   class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource"><ref  bean="ds"/></property></bean></beans>

pom.xml

<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/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.gxj</groupId><artifactId>ts170607</artifactId><version>0.0.1-SNAPSHOT</version><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><spring.version>5.0.6.RELEASE</spring.version><jackson.version>2.5.0</jackson.version></properties><dependencies><dependency><groupId>commons-dbcp</groupId><artifactId>commons-dbcp</artifactId><version>1.4</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><!-- spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>5.0.6.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</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-test</artifactId><version>${spring.version}</version><scope>test</scope></dependency><!-- mybatis 包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.8</version></dependency><!--mybatis spring 插件 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><!-- mysql连接 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.6</version></dependency><!-- 数据源 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.12</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.4</version></dependency><!-- log4j --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><!-- servlet --><dependency><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId><version>3.0-alpha-1</version><scope>provided</scope></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- json --><dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.3</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.9.4</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.9.4</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.4</version></dependency><!-- 文件上传 --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2.2</version></dependency><dependency><groupId>org.codehaus.jackson</groupId><artifactId>com.springsource.org.codehaus.jackson.mapper</artifactId>
<version>1.4.3</version>
</dependency><dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>com.springsource.org.codehaus.jackson</artifactId>
<version>1.4.3</version>
</dependency></dependencies><build>
<plugins>  <plugin>  <groupId>org.apache.maven.plugins</groupId>  <artifactId>maven-compiler-plugin</artifactId>  <configuration>  <source>1.8</source>  <target>1.8</target>  </configuration>  </plugin>
</plugins>
</build>
</project>

数据库资源需自己手动创建

到此Spring+jdbc的增删改查已经弄完

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