使用spring的一个小demo,先看一下结果：
目录结构（web+spring）：
spring所需架包：
applicationContext.xml文件：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans 3 xmlns="http://www.springframework.org/schema/beans" 4 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 5 xmlns:p="http://www.springframework.org/schema/p" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd"> 7 8 <!-- 添加容器。并创建对象 --> 9 <bean id="userInfo" class="com.spring.entity.UserInfo"> 10 <property name="userId" value="001"></property> 11 <property name="userName" value="龙伟"></property> 12 <property name="userSex" value="男"></property> 13 <property name="userAge" value="18"></property> 14 </bean> 15 16 <!-- 通过IOC 机制创建dao对象(实现类对象) --> 17 <bean id="uDao" class="com.spring.dao.imlp.UserInfoImlp"/> 18 <!-- 赋值 将值赋给action对象的属性 --> 19 <bean id="userAtion" class="com.spring.ation.UserInfoAtion"> 20 <property name="userDao" ref="uDao"></property> 21 </bean> 22 23 <!-- 24 容器创建对象方式 25 scope="singletion" 单例模式, 只有一个对象（官方推荐使用） 26 scope="prototype" 容器可以创建多个对象, 默认 27 scope="request" 28 scope="session" 29 --> 30 <bean id="emp" class="com.spring.entity.EmpInfo" scope="prototype"> 31 <property name="name" value="龙龙"></property> 32 <property name="age" value="20"></property> 33 <property name="dptInfo" ref="dept1"></property> 34 </bean> 35 36 <!-- 部门对象 --> 37 <bean id="dept1" class="com.spring.entity.DeptInfo"> 38 <!-- 给部分字段设置注入 --> 39 <property name="deptName" value="技术部"></property> 40 </bean> 41 42 <!-- 集合的注入 --> 43 <bean id="detp" class="com.spring.entity.DeptInfo"> 44 <!-- 给部分字段设置注入 --> 45 <property name="deptName" value="财务部"></property> 46 47 <!-- set集合 --> 48 <property name="set"> 49 <set> 50 <value>20</value> 51 <value>50</value> 52 <value>78</value> 53 </set> 54 </property> 55 <!-- list集合 --> 56 <property name="list"> 57 <list> 58 <value>李四</value> 59 <value>赵六</value> 60 <value>王二</value> 61 </list> 62 </property> 63 64 <!-- map集合 --> 65 <property name="map"> 66 <map> 67 <entry key="sex" value="女"></entry> 68 <entry key="address" value="重庆"></entry> 69 </map> 70 </property> 71 </bean> 72 73 <!-- 使用静态工厂 --> 74 <bean id="staticFactory" class="com.spring.entity.StaticFactory" factory-method="getUerInfo"> 75 <constructor-arg value="u1"></constructor-arg> 76 </bean> 77 </beans>
web.xml文件：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <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" id="WebApp_ID" version="3.1"> 3 <display-name>Spring-code-1</display-name> 4 <welcome-file-list> 5 <welcome-file>index.html</welcome-file> 6 <welcome-file>index.htm</welcome-file> 7 <welcome-file>index.jsp</welcome-file> 8 <welcome-file>default.html</welcome-file> 9 <welcome-file>default.htm</welcome-file> 10 <welcome-file>default.jsp</welcome-file> 11 </welcome-file-list> 12 <servlet> 13 <description>JAX-RS Tools Generated - Do not modify</description> 14 <servlet-name>JAX-RS Servlet</servlet-name> 15 <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> 16 <load-on-startup>1</load-on-startup> 17 </servlet> 18 <servlet-mapping> 19 <servlet-name>JAX-RS Servlet</servlet-name> 20 <url-pattern>/jaxrs/*</url-pattern> 21 </servlet-mapping> 22 <listener> 23 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 24 </listener> 25 <context-param> 26 <param-name>contextConfigLocation</param-name> 27 <param-value>classpath:applicationContext.xml</param-value> 28 </context-param> 29 </web-app>
UserInfoAtion.java:
1 package com.spring.ation; 2 3 import com.spring.dao.IUserInfo; 4 5 public class UserInfoAtion { 6 private IUserInfo userDao; 7 8 public IUserInfo getUserDao() { 9 return userDao; 10 } 11 12 public void setUserDao(IUserInfo userDao) { 13 this.userDao = userDao; 14 } 15 16 public void add(){ 17 userDao.add(); 18 } 19 20 public void query(){ 21 userDao.query(); 22 } 23 }
IUserInfo.java:
1 package com.spring.dao; 2 3 import java.util.List; 4 5 public interface IUserInfo { 6 /** 7 * 添加 8 */ 9 void add(); 10 /** 11 * 查看 12 */ 13 List<String> query(); 14 }
UserInfoImlp.java:
1 package com.spring.dao.imlp; 2 3 import java.util.List; 4 5 import com.spring.dao.IUserInfo; 6 7 public class UserInfoImlp implements IUserInfo{ 8 9 @Override 10 public void add() { 11 System.out.println("UserInfoImlp添加"); 12 } 13 14 @Override 15 public List<String> query() { 16 System.out.println("UserInfoImlp查询"); 17 return null; 18 } 19 20 }
DeptInfo.java:
1 package com.spring.entity; 2 3 import java.util.List; 4 import java.util.Map; 5 import java.util.Set; 6 7 public class DeptInfo { 8 private String deptName; 9 10 private List list; 11 private Set set; 12 private Map map; 13 14 public DeptInfo() { 15 super(); 16 } 17 18 public DeptInfo(String deptName, List list, Set set, Map map) { 19 super(); 20 this.deptName = deptName; 21 this.list = list; 22 this.set = set; 23 this.map = map; 24 } 25 26 public String getDeptName() { 27 return deptName; 28 } 29 30 public void setDeptName(String deptName) { 31 this.deptName = deptName; 32 } 33 34 public List getList() { 35 return list; 36 } 37 38 public void setList(List list) { 39 this.list = list; 40 } 41 42 public Set getSet() { 43 return set; 44 } 45 46 public void setSet(Set set) { 47 this.set = set; 48 } 49 50 public Map getMap() { 51 return map; 52 } 53 54 public void setMap(Map map) { 55 this.map = map; 56 } 57 58 @Override 59 public String toString() { 60 return "DeptInfo [deptName=" + deptName + ", list=" + list + ", set=" + set + ", map=" + map + "]"; 61 } 62 63 }
EmpInfo.java:
1 package com.spring.entity; 2 3 public class EmpInfo { 4 private String name; 5 private Integer age; 6 private DeptInfo dptInfo; 7 8 public EmpInfo() { 9 super(); 10 } 11 12 public EmpInfo(String name, Integer age, DeptInfo dptInfo) { 13 super(); 14 this.name = name; 15 this.age = age; 16 this.dptInfo = dptInfo; 17 } 18 19 public String getName() { 20 return name; 21 } 22 23 public void setName(String name) { 24 this.name = name; 25 } 26 27 public Integer getAge() { 28 return age; 29 } 30 31 public void setAge(Integer age) { 32 this.age = age; 33 } 34 35 public DeptInfo getDptInfo() { 36 return dptInfo; 37 } 38 39 public void setDptInfo(DeptInfo dptInfo) { 40 this.dptInfo = dptInfo; 41 } 42 43 @Override 44 public String toString() { 45 return "EmpInfo [name=" + name + ", age=" + age + ", dptInfo=" + dptInfo + "]"; 46 } 47 }
StaticFactory.java:
1 package com.spring.entity; 2 3 import java.util.HashMap; 4 import java.util.Map; 5 6 public class StaticFactory { 7 private static Map<String, UserInfo> map = new HashMap<>(); 8 9 static{ 10 //Integer userId, String userName, String userSex, Integer userAge 11 map.put("u1", new UserInfo(1, "龙龙", "男", 16)); 12 map.put("u2", new UserInfo(1, "婷婷", "女", 22)); 13 map.put("u3", new UserInfo(1, "浩浩", "男", 14)); 14 map.put("u4", new UserInfo(1, "天天", "男", 18)); 15 map.put("u5", new UserInfo(1, "江江", "男", 19)); 16 map.put("u6", new UserInfo(1, "静静", "女", 12)); 17 map.put("u7", new UserInfo(1, "坤坤", "男", 18)); 18 map.put("u8", new UserInfo(1, "王五", "男", 19)); 19 } 20 21 public static UserInfo getUerInfo(String key){ 22 return map.get(key); 23 } 24 }
UserInfo.java:
1 package com.spring.entity; 2 3 public class UserInfo { 4 private Integer userId; 5 private String userName; 6 private String userSex; 7 private Integer userAge; 8 9 public UserInfo() { 10 super(); 11 } 12 13 public UserInfo(Integer userId, String userName, String userSex, Integer userAge) { 14 super(); 15 this.userId = userId; 16 this.userName = userName; 17 this.userSex = userSex; 18 this.userAge = userAge; 19 } 20 21 public Integer getUserId() { 22 return userId; 23 } 24 25 public void setUserId(Integer userId) { 26 this.userId = userId; 27 } 28 29 public String getUserName() { 30 return userName; 31 } 32 33 public void setUserName(String userName) { 34 this.userName = userName; 35 } 36 37 public String getUserSex() { 38 return userSex; 39 } 40 41 public void setUserSex(String userSex) { 42 this.userSex = userSex; 43 } 44 45 public Integer getUserAge() { 46 return userAge; 47 } 48 49 public void setUserAge(Integer userAge) { 50 this.userAge = userAge; 51 } 52 53 @Override 54 public String toString() { 55 return "UserInfo [userId=" + userId + ", userName=" + userName + ", userSex=" + userSex + ", userAge=" + userAge 56 + "]"; 57 } 58 59 }
Test.java:
1 package test; 2 3 import org.springframework.context.support.ClassPathXmlApplicationContext; 4 5 import com.spring.ation.UserInfoAtion; 6 import com.spring.entity.EmpInfo; 7 import com.spring.entity.StaticFactory; 8 import com.spring.entity.UserInfo; 9 10 public class Test { 11 public static void main(String[] args) { 12 // 获取配置文件 13 ClassPathXmlApplicationContext bf = new ClassPathXmlApplicationContext("applicationContext.xml"); 14 15 // 获得用户对象 16 UserInfo usent = bf.getBean("userInfo", UserInfo.class); 17 System.out.println("对象的信息为：" + usent); 18 19 // 获得ation对象 20 UserInfoAtion ua = bf.getBean("userAtion", UserInfoAtion.class); 21 ua.add(); 22 ua.query(); 23 24 EmpInfo empInfo = bf.getBean("emp", EmpInfo.class); 25 System.out.println("empInfo: " + empInfo); 26 System.out.println("对象的信息行为：" + empInfo.getDptInfo().getDeptName()); 27 28 // 获得工厂 29 UserInfo user = bf.getBean("staticFactory", UserInfo.class); 30 System.out.println(user); 31 } 32 }