JAVA语言之ssh整合之七注解结合xml形式-职坐标

JAVA语言之ssh整合之七注解结合xml形式

小标 2018-07-19 来源：阅读 660 评论 0

摘要：本文主要向大家介绍了JAVA语言的ssh整合之七注解结合xml形式，通过具体的内容向大家展示，希望对大家学习JAVA语言有所帮助。

本文主要向大家介绍了JAVA语言的ssh整合之七注解结合xml形式，通过具体的内容向大家展示，希望对大家学习JAVA语言有所帮助。

　1.我们之前的纯xml的方式，我们的配置文件很多，我们可以使用注解结合xml的方式进行开发，这样的话，我们的配置文件，会少很多，同时，我们可以直接在类中看到配置，这样，我们就可以快速地搭建一个ssh整合的项目了

　　首先，我们应该考虑：我们的哪些东西需要我们用注解形式进行替换？

　　第一个：hibernate中的关系映射文件，我们可以使用jpa结合hibernate注解进行替换

　　第二个：spring中，我们的自定义的对象，我们可以使用我们的spring中ioc和tx的注解进行替换

　　第三个：我们的struts.xml可以使用struts的注解替换

　　这个是我们的一个大体上的思路，现在我们就去实现它！

　　我们的实体类Customer

package com.itheima.entity;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.Table;

@Entity

@Table(name="cst_customer")public class Customer {

@Id

@GeneratedValue(strategy=GenerationType.IDENTITY)

@Column(name="cust_id")

private Long custId; //客户编号

@Column(name="cust_name")

private String custName; //客户名称

@Column(name="cust_source")

private String custSource; //客户信息来源

@Column(name="cust_industry")

private String custIndustry; //客户所属行业

@Column(name="cust_level")

private String custLevel; //客户级别

@Column(name="cust_address")

private String custAddress; //客户联系地址

@Column(name="cust_phone")

private String custPhone; //客户联系电话

public Long getCustId() {

return custId;

}

public void setCustId(Long custId) {

this.custId = custId;

}

public String getCustName() {

return custName;

}

public void setCustName(String custName) {

this.custName = custName;

}

public String getCustSource() {

return custSource;

}

public void setCustSource(String custSource) {

this.custSource = custSource;

}

public String getCustIndustry() {

return custIndustry;

}

public void setCustIndustry(String custIndustry) {

this.custIndustry = custIndustry;

}

public String getCustLevel() {

return custLevel;

}

public void setCustLevel(String custLevel) {

this.custLevel = custLevel;

}

public String getCustAddress() {

return custAddress;

}

public void setCustAddress(String custAddress) {

this.custAddress = custAddress;

}

public String getCustPhone() {

return custPhone;

}

public void setCustPhone(String custPhone) {

this.custPhone = custPhone;

}

@Override

public String toString() {

return "Customer [custId=" + custId + ", custName=" + custName + ", custSource=" + custSource

+ ", custIndustry=" + custIndustry + ", custLevel=" + custLevel + ", custAddress=" + custAddress

+ ", custPhone=" + custPhone + "]";

}

　　我们的applicationContext.xml文件

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="//www.springframework.org/schema/beans"

xmlns:xsi="//www.w3.org/2001/XMLSchema-instance"

xmlns:context="//www.springframework.org/schema/context"

xmlns:aop="//www.springframework.org/schema/aop"

xmlns:tx="//www.springframework.org/schema/tx"

xsi:schemaLocation=" //www.springframework.org/schema/beans

//www.springframework.org/schema/beans/spring-beans.xsd

//www.springframework.org/schema/context

//www.springframework.org/schema/context/spring-context.xsd

//www.springframework.org/schema/aop

//www.springframework.org/schema/aop/spring-aop.xsd

//www.springframework.org/schema/tx

//www.springframework.org/schema/tx/spring-tx.xsd

<context:component-scan base-package="com.itheima"></context:component-scan>

<tx:annotation-driven/>

</bean>

<props>

<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>

<prop key="hibernate.hbm2ddl.auto">update</prop>

</props>

</property>

<!-- 指定要扫描的包

packagesToScan 在加载配置文件的时候，自动扫描包中的java类

-->

</bean>

</bean>

</bean>

</beans>

　　我们的CustomerAction

package com.itheima.action;

import java.util.List;

import org.apache.struts2.convention.annotation.Action;import org.apache.struts2.convention.annotation.Namespace;import org.apache.struts2.convention.annotation.ParentPackage;import org.apache.struts2.convention.annotation.Result;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Scope;import org.springframework.stereotype.Controller;

import com.itheima.entity.Customer;import com.itheima.service.CustomerService;import com.opensymphony.xwork2.ActionSupport;import com.opensymphony.xwork2.ModelDriven;

@Controller

@ParentPackage("struts-default")

@Namespace("/customer")

@Scope("prototype")public class CustomerAction extends ActionSupport implements ModelDriven<Customer> {

private Customer customer = new Customer();

@Autowired

private CustomerService customerService;

private List<Customer> customers;

public void setCustomers(List<Customer> customers) {

this.customers = customers;

}

public List<Customer> getCustomers() {

return customers;

}

public Customer getModel() {

return customer;

}

//进入添加页面

@Action(value="addCustomerUI",results={@Result(name="success",location="/jsp/customer/add.jsp")})

public String addCustomerUI(){

return this.SUCCESS;

}

//进入列表页面

@Action(value="getAllCustomer",results={@Result(name="success",location="/jsp/customer/list.jsp")})

public String getAllCustomer(){

customers = customerService.getAllCustomer();

return this.SUCCESS;

}

　　我们的CustomerServiceImpl

package com.itheima.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Propagation;import org.springframework.transaction.annotation.Transactional;

import com.itheima.dao.CustomerDao;import com.itheima.entity.Customer;import com.itheima.service.CustomerService;@Service

@Transactionalpublic class CustomerServiceImpl implements CustomerService{

@Autowired

private CustomerDao customerDao;

public void addCustomer(Customer customer) {

customerDao.save(customer);

}

@Transactional(propagation=Propagation.SUPPORTS,readOnly=true)

public List<Customer> getAllCustomer() {

return customerDao.find();

}

　　我们的CustomerDaoImpl

package com.itheima.dao.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;import org.springframework.orm.hibernate5.HibernateTemplate;import org.springframework.stereotype.Repository;

import com.itheima.dao.CustomerDao;import com.itheima.entity.Customer;@Repositorypublic class CustomerDaoImpl implements CustomerDao {

@Autowired

private HibernateTemplate hibernateTemplate;

public void save(Customer customer) {

hibernateTemplate.save(customer);

}

public List<Customer> find() {

return (List<Customer>) hibernateTemplate.find("from Customer");

}

　　这样的话，我们的注解结合xml的形式就可以了，下次我们把这个项目改成maven项目

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