1 public class Address { 2 3 private String address; 4 5 public String getAddress() { 6 return address; 7 } 8 9 public void setAddress(String address) { 10 this.address = address; 11 } 12 13 @Override 14 public String toString() { 15 return "Address{" + 16 "address=‘" + address + ‘\‘‘ + 17 ‘}‘; 18 } 19 }
1 public class Student { 2 3 private String name; 4 private Address address; 5 private String[] books; 6 private List<String> hobbys; 7 private Map<String, String> card; 8 private Set<String> games; 9 private String wife; 10 private Properties info; 11 12 public String getName() { 13 return name; 14 } 15 16 public void setName(String name) { 17 this.name = name; 18 } 19 20 public Address getAddress() { 21 return address; 22 } 23 24 public void setAddress(Address address) { 25 this.address = address; 26 } 27 28 public String[] getBooks() { 29 return books; 30 } 31 32 public void setBooks(String[] books) { 33 this.books = books; 34 } 35 36 public List<String> getHobbys() { 37 return hobbys; 38 } 39 40 public void setHobbys(List<String> hobbys) { 41 this.hobbys = hobbys; 42 } 43 44 public Map<String, String> getCard() { 45 return card; 46 } 47 48 public void setCard(Map<String, String> card) { 49 this.card = card; 50 } 51 52 public Set<String> getGames() { 53 return games; 54 } 55 56 public void setGames(Set<String> games) { 57 this.games = games; 58 } 59 60 public String getWife() { 61 return wife; 62 } 63 64 public void setWife(String wife) { 65 this.wife = wife; 66 } 67 68 public Properties getInfo() { 69 return info; 70 } 71 72 public void setInfo(Properties info) { 73 this.info = info; 74 } 75 76 @Override 77 public String toString() { 78 return "Student{" + 79 "name=‘" + name + ‘\‘‘ + 80 ", address=" + address.toString() + 81 ", books=" + Arrays.toString(books) + 82 ", hobbys=" + hobbys + 83 ", card=" + card + 84 ", games=" + games + 85 ", wife=‘" + wife + ‘\‘‘ + 86 ", info=" + info + 87 ‘}‘; 88 } 89 90 }
<?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="ustc.wzh.pojo.Address"></bean> <bean id="student" class="ustc.wzh.pojo.Student"> <!--1.普通值注入,value--> <property name="name" value="小王"></property> </bean> </beans>
1 public class MyTest { 2 3 public static void main(String[] args) { 4 ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml"); 5 6 Student student = (Student) context.getBean("student"); 7 8 System.out.println(student.getAddress()); 9 } 10 }
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 https://www.springframework.org/schema/beans/spring-beans.xsd"> 6 7 <bean id="address" class="ustc.wzh.pojo.Address"> 8 <property name="address" value="合肥"></property> 9 </bean> 10 11 <bean id="student" class="ustc.wzh.pojo.Student"> 12 <!--1.普通值注入,value--> 13 <property name="name" value="小王"></property> 14 <!--2.Bean对象注入,ref--> 15 <property name="address" ref="address"></property> 16 <!--3.数组注入,array,value--> 17 <property name="books"> 18 <array> 19 <value>语文</value> 20 <value>数学</value> 21 <value>英语</value> 22 <value>科学</value> 23 </array> 24 </property> 25 <!--4.list注入,list,value--> 26 <property name="hobbys"> 27 <list> 28 <value>写代码</value> 29 <value>看动漫</value> 30 <value>看电影</value> 31 <value>打篮球</value> 32 </list> 33 </property> 34 <!--5.map注入,map,entry,key,value--> 35 <property name="card"> 36 <map> 37 <entry key="身份证" value="12131231321"></entry> 38 <entry key="学生证" value="45644654646"></entry> 39 <entry key="银行卡" value="79797979797"></entry> 40 </map> 41 </property> 42 <!--6.set注入,set,value--> 43 <property name="games"> 44 <set> 45 <value>LOL</value> 46 <value>COC</value> 47 <value>BOB</value> 48 </set> 49 </property> 50 <!--7.null注入,null（注意空值“”和null不同）--> 51 <property name="wife"> 52 <null></null> 53 </property> 54 <!--8.Properties注入,props,prop,key--> 55 <property name="info"> 56 <props> 57 <prop key="学号">123456789</prop> 58 <prop key="性别">男</prop> 59 <prop key="姓名">小王</prop> 60 </props> 61 </property> 62 </bean> 63 64 65 </beans>
<?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:p="http://www.springframework.org/schema/p" xmlns:c="http://www.springframework.org/schema/c" xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd"> <!--P(属性: properties)命名空间 , 属性依然要设置set方法--> <bean id="user" class="ustc.wzh.pojo.User" p:name="小王" p:age="24"></bean> <!--C(构造: Constructor)命名空间 , 属性依然要设置set方法--> <bean id="user2" class="ustc.wzh.pojo.User" c:name="小王" c:age="18"/> </beans>
1 <bean id="ServiceImpl" class="cn.csdn.service.ServiceImpl" scope="singleton">
@Test public void test03(){ ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); User user = (User) context.getBean("user"); User user2 = (User) context.getBean("user"); System.out.println(user==user2); //true }
<bean id="account" class="com.foo.DefaultAccount" scope="prototype"/>
原文：https://www.cnblogs.com/zhihaospace/p/12324256.html