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SSH整合之全注解
SSH整合之全注解
使用注解配置,需要我们额外引入以下jar包
我们下面从实体层开始替换注解
1 package cn.hmy.beans; 2 3 import javax.persistence.Entity; 4 import javax.persistence.GeneratedValue; 5 import javax.persistence.Id; 6 import javax.persistence.Table; 7 8 @Entity 9 @Table 10 public class Stock { 11 12 @Id 13 @GeneratedValue 14 private int sid; 15 private String sname; 16 private int count; 17 18 public int getSid() { 19 return sid; 20 } 21 public void setSid(int sid) { 22 this.sid = sid; 23 } 24 25 public String getSname() { 26 return sname; 27 } 28 public void setSname(String sname) { 29 this.sname = sname; 30 } 31 public int getCount() { 32 return count; 33 } 34 public void setCount(int count) { 35 this.count = count; 36 } 37 }
Dao层替换 给实现类添加注解即可
1 package cn.hmy.dao.impl; 2 3 import java.io.Serializable; 4 import java.util.List; 5 6 import org.hibernate.SessionFactory; 7 import org.hibernate.Transaction; 8 import org.springframework.beans.factory.annotation.Autowired; 9 import org.springframework.jdbc.core.support.JdbcDaoSupport; 10 import org.springframework.stereotype.Repository; 11 12 import cn.hmy.beans.Stock; 13 import cn.hmy.dao.StockDao; 14 15 @Repository("stockDao") 16 public class StockDaoImpl implements StockDao{ 17 18 @Autowired 19 private SessionFactory sessionFactory; 20 21 //添加股票 22 public int addStock(Stock stock) { 23 24 Serializable count = sessionFactory.getCurrentSession().save(stock); 25 return ((Integer)count).intValue(); 26 } 27 28 public List<Stock> getAllStock() { 29 String sql="from Stock "; 30 List<Stock> list = sessionFactory.getCurrentSession().createQuery(sql).list(); 31 return list; 32 } 33 34 35 public SessionFactory getSessionFactory() { 36 return sessionFactory; 37 } 38 public void setSessionFactory(SessionFactory sessionFactory) { 39 this.sessionFactory = sessionFactory; 40 } 41 42 43 44 45 46 47 }
Service层也是替换实现类 使用注解
1 package cn.hmy.service.impl; 2 3 import java.util.List; 4 5 import org.springframework.beans.factory.annotation.Autowired; 6 import org.springframework.beans.factory.annotation.Qualifier; 7 import org.springframework.stereotype.Service; 8 import org.springframework.transaction.annotation.Isolation; 9 import org.springframework.transaction.annotation.Propagation; 10 import org.springframework.transaction.annotation.Transactional; 11 12 13 import cn.hmy.beans.Stock; 14 import cn.hmy.beans.StockException; 15 16 import cn.hmy.dao.StockDao; 17 import cn.hmy.service.StockService; 18 19 @Service("service") 20 public class StockServiceImpl implements StockService{ 21 22 //植入Dao对象 23 @Autowired 24 @Qualifier("stockDao") 25 private StockDao stockDao; 26 27 @Transactional 28 public int addStock(Stock stock) { 29 return stockDao.addStock(stock); 30 } 31 32 public List<Stock> getAllStock() { 33 34 return stockDao.getAllStock(); 35 } 36 37 public StockDao getStockDao() { 38 return stockDao; 39 } 40 41 public void setStockDao(StockDao stockDao) { 42 this.stockDao = stockDao; 43 } 44 45 46 47 48 }
Action层 使用注解
1 package cn.hmy.action; 2 3 import java.io.UnsupportedEncodingException; 4 import java.util.List; 5 6 import javax.annotation.Resource; 7 8 import org.apache.struts2.convention.annotation.Action; 9 import org.apache.struts2.convention.annotation.Namespace; 10 import org.apache.struts2.convention.annotation.ParentPackage; 11 import org.apache.struts2.convention.annotation.Result; 12 import org.springframework.context.annotation.Scope; 13 import org.springframework.stereotype.Controller; 14 15 import cn.hmy.beans.Stock; 16 import cn.hmy.service.StockService; 17 18 import com.opensymphony.xwork2.ActionSupport; 19 20 @Controller 21 @Scope("prototype") 22 @Namespace("/stock") 23 @ParentPackage("struts-default") 24 public class AddStockAction extends ActionSupport{ 25 private Stock stock; 26 //植入Service对象 27 @Resource 28 private StockService stockService; 29 30 31 32 33 @Action(value="http://www.mamicode.com/addStockAction",results={@Result(name="success",location="/addSuccess.jsp")}) 34 public String addStock() throws UnsupportedEncodingException{ 35 36 //stock.setSname(new String(stock.getSname().getBytes("iso-8859-1"),"utf-8")); 37 int addStock = stockService.addStock(stock); 38 System.out.println("添加股票 "+addStock); 39 40 41 42 return SUCCESS; 43 } 44 45 46 47 48 49 50 public Stock getStock() { 51 return stock; 52 } 53 54 public void setStock(Stock stock) { 55 this.stock = stock; 56 } 57 public StockService getStockService() { 58 return stockService; 59 } 60 61 public void setStockService(StockService stockService) { 62 this.stockService = stockService; 63 } 64 65 }
这里我们需要注意applicationContext.xml配置文件中的配置信息
引入包扫描器
将小配置文件的引入换为以下形式
如果用上面的扫描器,我们必须保证sessionFactory的为Hibernate5或者为以下形式
Spring用注解配置事务
按以上配置配即可
SSH整合之全注解
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