DI 多種資料型別注入
阿新 • • 發佈:2021-08-11
首先建立一個Address類
package com.zhang.pojo; public class Address { private String address; public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } @Override public String toString() { returnAddress類"Address{" + "address='" + address + '\'' + '}'; } }
然後建立一個Student類,Student類中建立一個Address類物件
package com.zhang.pojo; import java.util.*; public class Student { private Address address; //地址 private String name; //姓名 private String[] book; //Student類書籍 private List<String> hobby; //愛好 private Map<String, String> card;//學生證 private Set<String> game; //遊戲 private Properties info; //資訊 private String marry; //結婚 public Address getAddress() { return address; } public void setAddress(Address address) {this.address = address; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String[] getBook() { return book; } public void setBook(String[] book) { this.book = book; } public List<String> getHobby() { return hobby; } public void setHobby(List<String> hobby) { this.hobby = hobby; } public Map<String, String> getCard() { return card; } public void setCard(Map<String, String> card) { this.card = card; } public Set<String> getGame() { return game; } public void setGame(Set<String> game) { this.game = game; } public Properties getInfo() { return info; } public void setInfo(Properties info) { this.info = info; } public String getMarry() { return marry; } public void setMarry(String marry) { this.marry = marry; } @Override public String toString() { return "Student{" + "address=" + address + ", name='" + name + '\'' + ", book=" + Arrays.toString(book) + ", hobby=" + hobby + ", card=" + card + ", game=" + game + ", info=" + info + ", marry='" + marry + '\'' + '}'; } }
配置applicationContext.xml檔案
注意:map型別和properties型別的資料配置方法特殊
map:<entry key= " " values= " " >
propeties:<prop key= " " > </prop> 在兩個標籤中間填寫資料
<?xml version="1.0" encoding="UTF-8"?> <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 https://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="Address" class="com.zhang.pojo.Address"> <property name="address" value="北京"/> </bean> <bean id="Student" class="com.zhang.pojo.Student"> <property name="name" value="小明"/> <property name="address" ref="Address"/> <property name="book"> <array> <value>三國演義</value> <value>水滸傳</value> <value>西遊記</value> <value>紅樓夢</value> </array> </property> <property name="hobby"> <list> <value>遊戲</value> <value>電影</value> <value>音樂</value> </list> </property> <property name="card"> <map> <entry key="1001" value="小明"/> <entry key="1002" value="小剛"/> <entry key="1003" value="小李"/> </map> </property> <property name="game"> <set> <value>CS</value> <value>RDR</value> <value>Fortnite</value> </set> </property> <property name="info"> <props> <prop key="1001">河北大學</prop> <prop key="1002">河南大學</prop> <prop key="1003">河海大學</prop> </props> </property> <property name="marry"> <null/> </property> </bean> </beans>
MyTest類測試結果
import com.zhang.pojo.Student; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class MyTest { ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); @Test public void StudentTest() { Student student = (Student) context.getBean("Student"); System.out.println(student.toString()); } }
結果: