依赖注入有两种方式 通过 get   set 方法

Person.java

1 package cn.itcast.spring.sh.di.set; 2  3 import java.util.List; 4 import java.util.Map; 5 import java.util.Properties; 6 import java.util.Set; 7  8 public class Person { 9     private Long pid;10     private String pname;11     private Student student;12     13     private Set sets;14     15     public Long getPid() {16         return pid;17     }18 19     public void setPid(Long pid) {20         this.pid = pid;21     }22 23     public String getPname() {24         return pname;25     }26 27     public void setPname(String pname) {28         this.pname = pname;29     }30 31     public Student getStudent() {32         return student;33     }34 35     public void setStudent(Student student) {36         this.student = student;37     }38 39     public Set getSets() {40         return sets;41     }42 43     public void setSets(Set sets) {44         this.sets = sets;45     }46 47     public List getLists() {48         return lists;49     }50 51     public void setLists(List lists) {52         this.lists = lists;53     }54 55     public Map getMap() {56         return map;57     }58 59     public void setMap(Map map) {60         this.map = map;61     }62 63     public Properties getProperties() {64         return properties;65     }66 67     public void setProperties(Properties properties) {68         this.properties = properties;69     }70 71     private List lists;72     73     private Map map;74     75     private Properties properties;76 }

Student.java

 package cn.itcast.spring.sh.di.set; 2 3 public class Student { 4 5 } 

 

applicationContext-di-set.xml中

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          list1
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          list2
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          set1
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          47                     prop148                 
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          50                     prop251                 
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      55     56     
      57 
     

 

还有一种是通过构造函数 注入

Person.java

1 package cn.itcast.spring.sh.di.constructor; 2  3 import java.util.List; 4 import java.util.Map; 5 import java.util.Properties; 6 import java.util.Set; 7  8 public class Person { 9     private Long pid;10     private String pname;11     private Student student;12     13     private Set sets;14     15     public Person(String pname,Student student){16         this.pname = pname;17         this.student = student;18     }19     20     public Person(Long pid,String pname,Student student){21         this.pid = pid;22         this.pname = pname;23         this.student = student;24     }25     26     public Person(){}27     28     public Long getPid() {29         return pid;30     }31 32     public void setPid(Long pid) {33         this.pid = pid;34     }35 36     public String getPname() {37         return pname;38     }39 40     public void setPname(String pname) {41         this.pname = pname;42     }43 44     public Student getStudent() {45         return student;46     }47 48     public void setStudent(Student student) {49         this.student = student;50     }51 52     public Set getSets() {53         return sets;54     }55 56     public void setSets(Set sets) {57         this.sets = sets;58     }59 60     public List getLists() {61         return lists;62     }63 64     public void setLists(List lists) {65         this.lists = lists;66     }67 68     public Map getMap() {69         return map;70     }71 72     public void setMap(Map map) {73         this.map = map;74     }75 76     public Properties getProperties() {77         return properties;78     }79 80     public void setProperties(Properties properties) {81         this.properties = properties;82     }83 84     private List lists;85     86     private Map map;87     88     private Properties properties;89 }

Student.java

1 package cn.itcast.spring.sh.di.constructor;2 3 public class Student {4     public void student(){5         System.out.println("student");6     }7 }

 

applicationContext-di-constructor.xml

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测试

 

1 package cn.itcast.spring.sh.test; 2  3 import org.junit.Test; 4  5 import cn.itcast.spring.sh.di.constructor.Person; 6 import cn.itcast.spring.sh.utils.SpringInit; 7  8 public class DIConTest extends SpringInit{ 9     @Test10     public void testSet(){11         Person person  = (Person)context.getBean("person_Con");12         System.out.println(person.getPname());13         person.getStudent().student();14     }15 }