SSH+Oracle的整合（SSH与Oracle整合坑巨多）
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这里用SSH+Oracle做一个仓库管理系统，其中包含了查询、条件查询、删除、批量删除、修改、添加的功能。值得注意的是，Oracle与其它数据库存在很多不同之处，所以SSH和Oracle整合的时候小细节处理稍有不慎，就要花费大量时间去排查，亲身体会！
下面进入正文 ↓↓↓↓
Oracle数据库：
goods.sql
注意：创建表的时候，无论表名大写小写，创建完成时都会默认设置成大写。
--创建仓库表 create table goods ( Gno number not null primary key, --编号 gname varchar2(500) not null, --物质名称 gtype varchar2(20) not null, --物质类型 Gnumber number not null check (Gnumber > 0), --物质数量 Gcompany varchar2(500) not null, --生产商 Gcreatetime date default sysdate, --生产日期 Uintime date default sysdate --入库时间 ); drop table goods; --创建自增序列 create sequence goods_id increment by 1 --增量为1 start with 1 --从1开始生成序列 nomaxvalue; --没有最大值 --插入数据 insert into goods(Gno,gname,gtype,gnumber,gcompany) values(goods_id.nextval,\'康师傅方便面\',\'食品\',\'150000\',\'康师傅食品有限公司\'); insert into goods(Gno,gname,gtype,gnumber,gcompany) values(goods_id.nextval,\'康师傅矿泉水\',\'饮用水\',\'150000\',\'康师傅食品有限公司\'); insert into goods(Gno,gname,gtype,gnumber,gcompany) values(goods_id.nextval,\'康师傅辣条\',\'食品\',\'150000\',\'康师傅食品有限公司\'); insert into goods(Gno,gname,gtype,gnumber,gcompany) values(goods_id.nextval,\'康师傅可乐\',\'食品\',\'150000\',\'康师傅食品有限公司\'); insert into goods(Gno,gname,gtype,gnumber,gcompany) values(goods_id.nextval,\'康师傅面包\',\'食品\',\'150000\',\'康师傅食品有限公司\'); select * from goods; select * from goods order by gcreatetime desc; commit;
SSH：
包结构：
idea中数据库插件配置：
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <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.hsl</groupId> <artifactId>Goods</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <!--spring--> <!-- 这个依赖可以让spring容器有bean管理，依赖注入，基本的切面配置功能，但不支持切点表达式以及其解析--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.0.2.RELEASE</version> </dependency> <!-- 让spring支持切点表达式功能--> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.13</version> </dependency> <!-- 这个依赖是spring专门用来与其他持久层框架进行整合用的一个依赖里面有LocalSessionFactoryBean类型--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>5.0.2.RELEASE</version> </dependency> <!-- 此依赖有事务方面的通知，事务管理器等 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>5.0.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>5.0.2.RELEASE</version> </dependency> <!--hibernate--> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>5.2.10.Final</version> </dependency> <!--struts--> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-core</artifactId> <version>2.5.12</version> </dependency> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-spring-plugin</artifactId> <version>2.5.12</version> </dependency> <!--oracle--> <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId> <version>11.2.0.3</version> </dependency> <!-- 这是dbcp连接池依赖，完全可以换别的连接池组件--> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-dbcp2</artifactId> <version>2.2.0</version> </dependency> <!--<dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency>--> </dependencies> <build> <plugins> <!--用于设定源代码文件的编码，以及项目代码运行的目标jdk版本为1.8 --> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>1.8</source> <target>1.8</target> <encoding>UTF-8</encoding> </configuration> </plugin> <!-- 指定项目中web资源的根目录，用于maven打包时把此目录的所有内容拷贝到war中--> <plugin> <artifactId>maven-war-plugin</artifactId> <version>2.2</version> <configuration> <warSourceDirectory>web</warSourceDirectory> </configuration> </plugin> </plugins> </build> </project>
Goods.java
package entity; import java.util.Date; public class Goods { private int Gno ; //编号 private String gname ; //物质名称 private String gtype ; //物质类型 private int Gnumber ; //物质数量 private String Gcompany ; //生产商 private Date Gcreatetime ; //生产日期 private Date Uintime ; //入库时间 public int getGno() { return Gno; } public void setGno(int gno) { Gno = gno; } public String getGname() { return gname; } public void setGname(String gname) { this.gname = gname; } public String getGtype() { return gtype; } public void setGtype(String gtype) { this.gtype = gtype; } public int getGnumber() { return Gnumber; } public void setGnumber(int gnumber) { Gnumber = gnumber; } public String getGcompany() { return Gcompany; } public void setGcompany(String gcompany) { Gcompany = gcompany; } public Date getGcreatetime() { return Gcreatetime; } public void setGcreatetime(Date gcreatetime) { Gcreatetime = gcreatetime; } public Date getUintime() { return Uintime; } public void setUintime(Date uintime) { Uintime = uintime; } }
GoodsDao.java
package dao; import entity.Goods; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.query.Query; import java.util.Date; import java.util.List; public class GoodsDao { private SessionFactory sessionFactory; public SessionFactory getSessionFactory() { return sessionFactory; } public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } //查询全部 public List<Goods> getAll(){ Session session = sessionFactory.getCurrentSession(); String sql = "from Goods as g order by g.Gcreatetime desc"; return session.createQuery(sql).list(); } //增加 public void addGoods(Goods goods){ Session session = sessionFactory.getCurrentSession(); session.save(goods); } //删除 public void delete(int Gno){ Session session = sessionFactory.getCurrentSession(); session.delete(session.get(Goods.class,Gno)); } //根据编号查询 public Goods getById(int Gno){ Session session = sessionFactory.getCurrentSession(); return session.get(Goods.class,Gno); } //修改 public void update(Goods goods){ Session session = sessionFactory.getCurrentSession(); session.update(goods); } //按条件查询 public List<Goods> getByTerm(String gname, Date firstTime,Date lastTime){ Session session = sessionFactory.getCurrentSession(); String hql = "from Goods g where g.gname like :gname and g.Gcreatetime between :firstTime and :lastTime"; Query query = session.createQuery(hql); query.setParameter("gname","%"+gname+"%"); query.setParameter("firstTime",firstTime); query.setParameter("lastTime",lastTime); return query.list(); } //批量删除 public void deleteAll(String[] Gno){ Session session = sessionFactory.getCurrentSession(); for(int i=0;i<Gno.length;i++){ Goods goods = this.getById(Integer.parseInt(Gno[i])); session.delete(goods); } } }
GoodsService.java
package service; import dao.GoodsDao; import entity.Goods; import java.util.Date; import java.util.List; public class GoodsService { private GoodsDao goodsDao; public GoodsDao getGoodsDao() { return goodsDao; } public void setGoodsDao(GoodsDao goodsDao) { this.goodsDao = goodsDao; } public List<Goods> getAll(){ return goodsDao.getAll(); } public void addGoods(Goods goods){ goodsDao.addGoods(goods); } public void delete(int Gno){ goodsDao.delete(Gno); } public Goods getById(int Gno){ return goodsDao.getById(Gno); } public void update(Goods goods){ goodsDao.update(goods); } public List<Goods> getByTerm(String gname, Date firstTime, Date lastTime){ return goodsDao.getByTerm(gname,firstTime,lastTime); } public void deleteAll(String[] Gno){ goodsDao.deleteAll(Gno); } }
GoodsController.java
package controller; import com.opensymphony.xwork2.ActionContext; import entity.Goods; import service.GoodsService; import java.util.Date; import java.util.List; public class GoodsController { private GoodsService goodsService; private Goods goods; private Date firstTime; private Date lastTime; private String Gnos; public String getGnos() { return Gnos; } public void setGnos(String gnos) { Gnos = gnos; } public Date getFirstTime() { return firstTime; } public void setFirstTime(Date firstTime) { this.firstTime = firstTime; } public Date getLastTime() { return lastTime; } public void setLastTime(Date lastTime) { this.lastTime = lastTime; } public Goods getGoods() { return goods; } public void setGoods(Goods goods) { this.goods = goods; } public GoodsService getGoodsService() { return goodsService; } public void setGoodsService(GoodsService goodsService) { this.goodsService = goodsService; } //查询全部 public String list(){ List<Goods> goods = goodsService.getAll(); ActionContext.getContext().put("goods",goods); return "list"; } //添加商品 public String add(){ goodsService.addGoods(goods); return "success"; } //删除商品 public String delete(){ goodsService.delete(goods.getGno()); return "success"; } //批量删除 public String deleteAll(){ System.out.println(Gnos); String[] gnos = Gnos.split(","); goodsService.deleteAll(gnos); return "success"; } //查询要修改的商品 public String edit(){ Goods goods1 = goodsService.getById(goods.getGno()); ActionContext.getContext().put("goods1",goods1); return "edit"; } //修改商品 public String update(){ goodsService.update(goods); return "success"; } //按条件查询 public String getByTerm(){ List<Goods> goods2 = goodsService.getByTerm(goods.getGname(),firstTime,lastTime); ActionContext.getContext().put("goods",goods2); return "list"; } }
Goods.hbm.xml
注意：
1.table需要写全称。
2.dynamic-insert和dynamic-update表示是否启动默认值，如果没有设置true则数据库中默认的字段会为空。
3.主键生成策略为increment，其它无效，不知道为什么。
<?xml version=\'1.0\' encoding=\'utf-8\'?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="entity"> <class name="entity.Goods" table="SCOTT.GOODS" dynamic-insert="true" dynamic-update="true" > <id name="Gno" column="Gno"> <generator class="increment"> <!--<param name="sequence">GOODS_ID</param>--> </generator> </id> <property name="gname" column="gname"/> <property name="gtype" column="gtype"/> <property name="Gnumber" column="Gnumber"/> <property name="Gcompany" column="Gcompany"/> <property name="Gcreatetime" column="Gcreatetime"/> <property name="uintime" column="uintime"/> </class> </hibernate-mapping>
db.properties
url=jdbc:oracle:thin:@localhost:1521:orcl
driverclass=oracle.jdbc.driver.OracleDriver
username=SCOTT
password=tiger
applicationContext.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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" 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/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"> <context:property-placeholder location="classpath:db.properties" local-override="true"/> <