64 SSM整合案例 1

最新推荐文章于 2022-07-26 08:40:29 发布
最新推荐文章于 2022-07-26 08:40:29 发布
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本文链接：https://blog.youkuaiyun.com/qq_38664094/article/details/106518024
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1 数据库准备

1使用PL/SQL Developer开发环境创建用户并给用户授予权限。
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2创建表并插入数据信息
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2 ssm整合之环境搭建

1创建工程以及其子模块
其中创建itcast-ssm-web时注意我们选择一个web工程
在这里插入图片描述2导入依赖
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.itheima.heima_ssm</groupId>
    <artifactId>heima_ssm</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <spring.version>5.0.2.RELEASE</spring.version>
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <oracle.version>11.2.0.1.0</oracle.version>
        <mybatis.version>3.4.5</mybatis.version>
        <spring.security.version>5.0.1.RELEASE</spring.security.version>
    </properties>

    <dependencies>        <!-- spring -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.8</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</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-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</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-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>

        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>        <!-- log start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>        <!-- log end -->

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
            <version>${spring.security.version}</version>
        </dependency>

        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc14</artifactId>
            <version>10.2.0.4.0</version>
        </dependency>


        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>jsr250-api</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>
    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.2</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                        <encoding>UTF-8</encoding>
                        <showWarnings>true</showWarnings>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
    <modules>
        <module>heima_ssm_dao</module>
        <module>heima_ssm_domain</module>
        <module>heima_ssm_service</module>
        <module>heima_ssm_utils</module>
        <module>heima_ssm_web</module>
    </modules>


</project>

3 编写实体类
在这里插入图片描述
Product.java (对数据表中的解释属性进行赋值)

package com.itheima.ssm.domain;

import com.itheima.ssm.utils.DateUtils;
import org.springframework.format.annotation.DateTimeFormat;

import java.util.Date;

public class Product {
    private String id; // 主键
    private String productNum; // 编号 唯一
    private String productName; // 名称
    private String cityName; // 出发城市
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm")
    private Date departureTime; // 出发时间
    private String departureTimeStr;
    private double productPrice; // 产品价格
    private String productDesc; // 产品描述
    private Integer productStatus; // 状态 0 关闭 1 开启
    private String productStatusStr;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getProductNum() {
        return productNum;
    }

    public void setProductNum(String productNum) {
        this.productNum = productNum;
    }

    public String getProductName() {
        return productName;
    }

    public void setProductName(String productName) {
        this.productName = productName;
    }

    public String getCityName() {
        return cityName;
    }

    public void setCityName(String cityName) {
        this.cityName = cityName;
    }

    public Date getDepartureTime() {
        return departureTime;
    }

    public void setDepartureTime(Date departureTime) {
        this.departureTime = departureTime;
    }

    public String getDepartureTimeStr() {

        if(departureTime!=null){
            departureTimeStr= DateUtils.date2String(departureTime,"yyyy-MM-dd HH:mm:ss");
        }
        return departureTimeStr;
    }

    public void setDepartureTimeStr(String departureTimeStr) {
        this.departureTimeStr = departureTimeStr;
    }

    public double getProductPrice() {
        return productPrice;
    }

    public void setProductPrice(double productPrice) {
        this.productPrice = productPrice;
    }

    public String getProductDesc() {
        return productDesc;
    }

    public void setProductDesc(String productDesc) {
        this.productDesc = productDesc;
    }

    public Integer getProductStatus() {
        return productStatus;
    }

    public void setProductStatus(Integer productStatus) {
        this.productStatus = productStatus;
    }

    public String getProductStatusStr() {

        if (productStatus!=null){
            if (productStatus==1){
                productStatusStr="开启";
            }
            if (productStatus==0){
                productStatusStr="关闭";
            }
        }
        return productStatusStr;
    }

    public void setProductStatusStr(String productStatusStr) {


        this.productStatusStr = productStatusStr;
    }


    @Override
    public String toString() {
        return "Product{" +
                "id='" + id + '\'' +
                ", productNum='" + productNum + '\'' +
                ", productName='" + productName + '\'' +
                ", cityName='" + cityName + '\'' +
                ", departureTime=" + departureTime +
                ", departureTimeStr='" + departureTimeStr + '\'' +
                ", productPrice=" + productPrice +
                ", productDesc='" + productDesc + '\'' +
                ", productStatus=" + productStatus +
                ", productStatusStr='" + productStatusStr + '\'' +
                '}';
    }
}

4编写配置文件对SSM框架进行整合
在这里插入图片描述

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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/aop
	http://www.springframework.org/schema/aop/spring-aop.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx.xsd">


    <!-- 开启注解扫描，管理service和dao -->
    <context:component-scan base-package="com.itheima.ssm.service">
    </context:component-scan>
    <context:component-scan base-package="com.itheima.ssm.dao">
    </context:component-scan>

    <context:property-placeholder location="classpath:db.properties"/>
    <!-- 配置连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>
    <!-- 把交给IOC管理 SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 传入PageHelper的插件 -->
        <!-- 传入PageHelper的插件 -->
        <property name="plugins">
            <array>
                <!-- 传入插件的对象 -->
                <bean class="com.github.pagehelper.PageInterceptor">
                    <property name="properties">
                        <props>
                            <prop key="helperDialect">oracle</prop>
                            <prop key="reasonable">true</prop>
                        </props>
                    </property>
                </bean>
            </array>
        </property>
    </bean>

    <!-- 扫描dao接口 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.itheima.ssm.dao"/>
    </bean>

    <!-- 配置Spring的声明式事务管理 -->
    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

db.properties

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/aop
	http://www.springframework.org/schema/aop/spring-aop.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx.xsd">


    <!-- 开启注解扫描，管理service和dao -->
    <context:component-scan base-package="com.itheima.ssm.service">
    </context:component-scan>
    <context:component-scan base-package="com.itheima.ssm.dao">
    </context:component-scan>

    <context:property-placeholder location="classpath:db.properties"/>
    <!-- 配置连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>
    <!-- 把交给IOC管理 SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 传入PageHelper的插件 -->
        <!-- 传入PageHelper的插件 -->
        <property name="plugins">
            <array>
                <!-- 传入插件的对象 -->
                <bean class="com.github.pagehelper.PageInterceptor">
                    <property name="properties">
                        <props>
                            <prop key="helperDialect">oracle</prop>
                            <prop key="reasonable">true</prop>
                        </props>
                    </property>
                </bean>
            </array>
        </property>
    </bean>

    <!-- 扫描dao接口 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.itheima.ssm.dao"/>
    </bean>

    <!-- 配置Spring的声明式事务管理 -->
    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:mvc="http://www.springframework.org/schema/mvc" 
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	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/mvc
           http://www.springframework.org/schema/mvc/spring-mvc.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context.xsd
           http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop.xsd
           ">

	<!-- 扫描controller的注解，别的不扫描 -->
	<context:component-scan base-package="com.itheima.ssm.controller">		
	</context:component-scan>

	<!-- 配置视图解析器 -->
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- JSP文件所在的目录 -->
		<property name="prefix" value="/pages/" />
		<!-- 文件的后缀名 -->
		<property name="suffix" value=".jsp" />
	</bean>

	<!-- 设置静态资源不过滤 -->
	<mvc:resources location="/css/" mapping="/css/**" />
	<mvc:resources location="/img/" mapping="/img/**" />
	<mvc:resources location="/js/" mapping="/js/**" />
	<mvc:resources location="/plugins/" mapping="/plugins/**" />

	<!-- 开启对SpringMVC注解的支持 -->
	<mvc:annotation-driven />

	<!-- 
		支持AOP的注解支持，AOP底层使用代理技术
		JDK动态代理，要求必须有接口
		cglib代理，生成子类对象，proxy-target-class="true" 默认使用cglib的方式
	-->
	<aop:aspectj-autoproxy proxy-target-class="true"/>
	
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

  <!-- 配置加载类路径的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext.xml</param-value>
  </context-param>

  <!-- 配置监听器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置监听器，监听request域对象的创建和销毁的 -->
  <listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
  </listener>




  <!-- 前端控制器（加载classpath:springmvc.xml 服务器启动创建servlet） -->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  <!-- 解决中文乱码过滤器 -->
  <filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>



  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

5在这里插入图片描述

编写持久层接口和业务层代码
IProductDao

package com.itheima.ssm.dao;

import com.itheima.ssm.domain.Product;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface IProductDao {
    @Select("Select * from product where id = #{id}")
    public Product findById(String id ) throws Exception;

    @Select("select * from product")
    public List<Product> findAll() throws Exception;


    @Insert("insert into product(productNum,productName,cityName,departureTime,productPrice,productDesc,productStatus) values(#{productNum},#{productName},#{cityName},#{departureTime},#{productPrice},#{productDesc},#{productStatus})")
    void save(Product product);
}

IOrdersDao

package com.itheima.ssm.dao;

import com.itheima.ssm.domain.Orders;
import org.apache.ibatis.annotations.One;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface IOrdersDao {
    @Select("select * from orders")
    @Results({@Result(id=true,column = "id",property = "id"),
            @Result(column = "orderNum",property = "orderNum"),
            @Result(column = "orderTime",property = "orderTime"),
            @Result(column = "orderStatus",property = "orderStatus"),
            @Result(column = "peopleCount",property = "peopleCount"),
            @Result(column = "payType",property = "payType"),
            @Result(column = "orderDesc",property = "orderDesc"),
            @Result(column = "productId",property = "product",one = @One(select ="com.itheima.ssm.dao.IProductDao.findById"))
    })
    public List<Orders> findAll() throws Exception;
}

ProductServiceImpl

package com.itheima.ssm.service.impl;

import com.itheima.ssm.dao.IProductDao;
import com.itheima.ssm.domain.Product;
import com.itheima.ssm.service.IProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
@Transactional
public class ProductServiceImpl implements IProductService {
    @Autowired
    private IProductDao productDao;
    @Override
    public List<Product> findAll() throws Exception {
        return productDao.findAll();
    }

    @Override
    public void save(Product product) {
        productDao.save(product);
    }
}

OrdersServiceImpl

package com.itheima.ssm.service.impl;

import com.github.pagehelper.PageHelper;
import com.itheima.ssm.dao.IOrdersDao;
import com.itheima.ssm.domain.Orders;
import com.itheima.ssm.service.IOrdersService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
@Transactional
public class OrdersServiceImpl implements IOrdersService {
    @Autowired
    private IOrdersDao ordersDao;
    @Override
    public List<Orders> findAll() throws Exception {
        return ordersDao.findAll();
    }

    @Override
    public List<Orders> findByPage(int page, int pageSize) throws Exception {

        //page是查询的起始页码，pageSize是查询的每页条目数目
        PageHelper.startPage(page,pageSize);
        return ordersDao.findAll();
    }
}

6编写Controller
ProductController

package com.itheima.ssm.controller;

import com.itheima.ssm.domain.Product;
import com.itheima.ssm.service.IProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
@RequestMapping("/product")
public class ProductController {

    @Autowired
    private IProductService productService;
    //查询所有的产品
    @RequestMapping("/findAll.do")
    public ModelAndView findAll() throws Exception {
        ModelAndView mv=new ModelAndView();

        List<Product> ps = productService.findAll();
        //System.out.println(ps);

        mv.addObject("productList",ps);
        mv.setViewName("product-list");
        return mv;

    }

    //产品的添加
    @RequestMapping("/save.do")
    public String save(Product product){
        productService.save(product);
        return "redirect:findAll.do";
    }

}

OrdersController

package com.itheima.ssm.controller;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.itheima.ssm.domain.Orders;
import com.itheima.ssm.domain.Product;
import com.itheima.ssm.service.IOrdersService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
@RequestMapping("/orders")
public class OrdersController {
    @Autowired
    private IOrdersService ordersService;

    //未进行分页的代码
//     @RequestMapping("/findAll.do")
//    public ModelAndView findAll() throws Exception {
//        ModelAndView mv=new ModelAndView();
//
//         List<Orders> orders = ordersService.findAll();
//         //System.out.println(ps);
//
//        mv.addObject("ordersList",orders);
//        mv.setViewName("orders-list");
//        return mv;
//
//    }

    //进行分页处理后的代码
    @RequestMapping("/findAll.do")
    public ModelAndView findAll(@RequestParam(name="page",required = true,defaultValue = "1") int page,@RequestParam(name="pageSize",required = true,defaultValue = "3") int pageSize) throws Exception {
        ModelAndView mv=new ModelAndView();

        List<Orders> orders = ordersService.findByPage(page,pageSize);

        PageInfo pageInfo=new PageInfo(orders);

        mv.addObject("pageInfo",pageInfo);
        mv.setViewName("orders-page-list");
        return mv;

    }

}

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