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Spring4-注入值到集合类型
1.创建Maven项目,项目名称springdemo27,如图所示
2.配置Maven,修改项目中的pom.xml文件,修改内容如下
<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>1.0.0</modelVersion> <groupId>shequ</groupId> <artifactId>springdemo13</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <java.version>1.7</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> </properties> <repositories> <repository> <id>codelds</id> <url>https://code.lds.org/nexus/content/groups/main-repo</url> </repository> </repositories> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> </dependencies> <build/> </project>
3.在src/main/java下创建实体Bean Forum,包名(com.mycompany.shequ.bean)如图所示
4.实体Bean Forum的内容如下
package com.mycompany.shequ.bean;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
public class Forum {
private int fid;
private String name;
private List<Object> lists;
private Set<Object> sets;
private Map<Object,Object> maps;
private Properties pros;
public int getFid() {
return fid;
}
public void setFid(int fid) {
this.fid = fid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<Object> getLists() {
return lists;
}
public void setLists(List<Object> lists) {
this.lists = lists;
}
public Set<Object> getSets() {
return sets;
}
public void setSets(Set<Object> sets) {
this.sets = sets;
}
public Map<Object, Object> getMaps() {
return maps;
}
public void setMaps(Map<Object, Object> maps) {
this.maps = maps;
}
public Properties getPros() {
return pros;
}
public void setPros(Properties pros) {
this.pros = pros;
}
@Override
public String toString() {
return "{fid=>"+this.fid+",name=>"+this.name+"}";
}
}5.在src/main/java下创建实体Bean ForumPost,包名(com.mycompany.shequ.bean)如图所示
6.实体Bean ForumPost的内容如下
package com.mycompany.shequ.bean;
public class ForumPost {
private int pid;
private String name;
public int getPid() {
return pid;
}
public void setPid(int pid) {
this.pid = pid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "{pid=>"+this.pid+",name=>"+this.name+"}";
}
}7.在src/main/resources下创建spring-bean.xml配置文件,如图所示
8.spring-bean.xml配置文件的内容如下
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd"> <bean id="forum" class="com.mycompany.shequ.bean.Forum"> <property name="fid" value="http://www.mamicode.com/1"></property> <property name="name" value="http://www.mamicode.com/集合"></property> <property name="lists"> <list> <value>1</value> <ref bean="forumpost"/> <bean class="com.mycompany.shequ.bean.ForumPost"> <property name="pid" value="http://www.mamicode.com/1"></property> <property name="name" value="http://www.mamicode.com/list"></property> </bean> </list> </property> <property name="sets"> <set> <value>1</value> <ref bean="forumpost"/> <bean class="com.mycompany.shequ.bean.ForumPost"> <property name="pid" value="http://www.mamicode.com/2"></property> <property name="name" value="http://www.mamicode.com/set"></property> </bean> </set> </property> <property name="maps"> <map> <entry key="key1" value="http://www.mamicode.com/1"></entry> <entry key="key2" value-ref="forumpost"></entry> <entry key="key3"> <bean class="com.mycompany.shequ.bean.ForumPost"> <property name="pid" value="http://www.mamicode.com/3"></property> <property name="name" value="http://www.mamicode.com/map"></property> </bean> </entry> </map> </property> <property name="pros"> <props> <prop key="key1">props1</prop> <prop key="key2">props2</prop> </props> </property> </bean> <bean id="forumpost" class="com.mycompany.shequ.bean.ForumPost"> <property name="pid" value="http://www.mamicode.com/2"></property> <property name="name" value="http://www.mamicode.com/prototype"></property> </bean> </beans>
9.在src/main/resources下创建核心配置文件applicationContext.xml,如图所示
10.核心配置文件applicationContext.xml的内容如下
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd"> <import resource="bean/spring-bean.xml"/> </beans>
11.在src/test/java下创建测试文件AppTest,包名(com.mycompany.shequ.test)如图所示
12.测试文件AppTest的内容如下
package com.mycompany.shequ.test;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.mycompany.shequ.bean.Forum;
public class AppTest {
@Test
public void beanTest(){
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
Forum forum = (Forum) context.getBean("forum");
List<Object> lists = forum.getLists();
for (Object object : lists) {
System.out.println(object);
}
System.out.println("----------------------------------------------");
Set<Object> sets = forum.getSets();
for (Object object : sets) {
System.out.println(object);
}
System.out.println("----------------------------------------------");
Map<Object,Object> maps = forum.getMaps();
for(Map.Entry<Object,Object> entry:maps.entrySet()){
System.out.println(entry.getKey()+"=>"+entry.getValue());
}
System.out.println("----------------------------------------------");
Properties pros = forum.getPros();
Iterator it = pros.entrySet().iterator();
while(it.hasNext()){
Map.Entry entry = (Entry) it.next();
System.out.println(entry.getKey()+"=>"+entry.getValue());
}
}
} 13.在测试类AppTest的beanTest方法上右键运行,输出结果如图所示
本文出自 “素颜” 博客，请务必保留此出处http://suyanzhu.blog.51cto.com/8050189/1909911
Spring4-注入值到集合类型
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