spring set注入

墨蓝 2022-11-05 05:23 203阅读 0赞

## Address类 ##

package com.lin.pojo;
    
    public class Address { 
        private String address;
    
        @Override
        public String toString() { 
            return "Address{" +
                    "address='" + address + '\'' +
                    '}';
        }
    
        public String getAddress() { 
            return address;
        }
    
        public void setAddress(String address) { 
            this.address = address;
        }
    }

## Student类 ##

package com.lin.pojo;
    
    import java.util.*;
    
    public class Student { 
    // value
        private String name;
        // ref
        private Address address;
        private String[] books;
        private List<String> hobbys;
        private Map<String,String> card;
        private Set<String> games;
        private String wife;
    
        public String getWife() { 
            return wife;
        }
    
        @Override
        public String toString() { 
            return "Student{" +
                    "name='" + name + '\'' +
                    ", address=" + address.toString() +
                    ", books=" + Arrays.toString(books) +
                    ", hobbys=" + hobbys +
                    ", card=" + card +
                    ", games=" + games +
                    ", wife='" + wife + '\'' +
                    ", info=" + info +
                    '}';
        }
    
        public void setWife(String wife) { 
            this.wife = wife;
        }
    
        private Properties info;
    
        public String getName() { 
            return name;
        }
    
        public void setName(String name) { 
            this.name = name;
        }
    
        public Address getAddress() { 
            return address;
        }
    
        public void setAddress(Address address) { 
            this.address = address;
        }
    
        public String[] getBooks() { 
            return books;
        }
    
        public void setBooks(String[] books) { 
            this.books = books;
        }
    
        public List<String> getHobbys() { 
            return hobbys;
        }
    
        public void setHobbys(List<String> hobbys) { 
            this.hobbys = hobbys;
        }
    
        public Map<String, String> getCard() { 
            return card;
        }
    
        public void setCard(Map<String, String> card) { 
            this.card = card;
        }
    
        public Set<String> getGames() { 
            return games;
        }
    
        public void setGames(Set<String> games) { 
            this.games = games;
        }
    
        public Properties getInfo() { 
            return info;
        }
    
        public void setInfo(Properties info) { 
            this.info = info;
        }
    
    
    
    
    }

beans.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"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
    
        <bean id="address" class="com.lin.pojo.Address"/>
    
    
        <bean id="student" class="com.lin.pojo.Student">
            
            <property name="name" value="林雨"/>
            
            <property name="address" ref="address"/>
            
            <property name="books">
                <array>
                    <value>红楼梦</value>
                    <value>三国</value>
                    <value>水浒传</value>
                    <value>三国演义</value>
                </array>
            </property>
    
            
            <property name="hobbys">
                <list>
                    <value>听歌</value>
                    <value>代码</value>
                    <value>看电影</value>
                </list>
            </property>
            
            <property name="card">
                <map>
                    <entry key="身份证" value="123456"/>
                    <entry key="银行卡" value="4578"></entry>
                </map>
            </property>
            
            <property name="games">
                <set>
                    <value>LOL</value>
                    <value>DOTA</value>
                </set>
            </property>
            
            <property name="wife">
                <null/>
            </property>
    
            
            <property name="info">
                <props>
                    <prop key="学号">123</prop>
                    <prop key="班级">45</prop>
                </props>
            </property>
        </bean>
    
    </beans>

## 测试类 ##

import com.lin.pojo.Student;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class MyTest { 
        public static void main(String[] args) { 
            ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
            Student student = (Student) context.getBean("student");
    // System.out.println(student.getName());
    // System.out.println(student.getAddress());
            System.out.println(student.toString());
        }
    }