[转]PropertyUtils的使用

Posted 2021-01-03 lp2cx

Java代码 

1. package com.sunrex.demo02;  
2.   
3. import java.util.List;  
4.   
5. public class Address {  
6.     private String email;  
7.     private List<String> telephone;  
8.     public String getEmail() {  
9.         return email;  
10.     }  
11.     public void setEmail(String email) {  
12.         this.email = email;  
13.     }  
14.     public List<String> getTelephone() {  
15.         return telephone;  
16.     }  
17.     public void setTelephone(List<String> telephone) {  
18.         this.telephone = telephone;  
19.     }  
20. }  

（２）第二个

Java代码 

1. package com.sunrex.demo02;  
2.   
3. import java.util.ArrayList;  
4. import java.util.HashMap;  
5. import java.util.List;  
6. import java.util.Map;  
7.   
8. public class Person {  
9.     private String username;  
10.     private int age;  
11.     private float stature;//身高  
12.     private boolean sex;//性别  
13.     @SuppressWarnings("unchecked")  
14.     private List list = new ArrayList();  
15.     private String[] friendsNames;  
16.     private Map<String, String> maps = new HashMap<String, String>();  
17.     private Address address;  
18.       
19.     public String getUsername() {  
20.         return username;  
21.     }  
22.     public void setUsername(String username) {  
23.         this.username = username;  
24.     }  
25.     public int getAge() {  
26.         return age;  
27.     }  
28.     public void setAge(int age) {  
29.         this.age = age;  
30.     }  
31.     public float getStature() {  
32.         return stature;  
33.     }  
34.     public void setStature(float stature) {  
35.         this.stature = stature;  
36.     }  
37.     public boolean isSex() {  
38.         return sex;  
39.     }  
40.     public void setSex(boolean sex) {  
41.         this.sex = sex;  
42.     }  
43.     @SuppressWarnings("unchecked")  
44.     public List getList() {  
45.         return list;  
46.     }  
47.     @SuppressWarnings("unchecked")  
48.     public void setList(List list) {  
49.         this.list = list;  
50.     }  
51.     public Address getAddress() {  
52.         return address;  
53.     }  
54.     public void setAddress(Address address) {  
55.         this.address = address;  
56.     }  
57.     public Map<String, String> getMaps() {  
58.         return maps;  
59.     }  
60.     public void setMaps(Map<String, String> maps) {  
61.         this.maps = maps;  
62.     }  
63.     public String[] getFriendsNames() {  
64.         return friendsNames;  
65.     }  
66.     public void setFriendsNames(String[] friendsNames) {  
67.         this.friendsNames = friendsNames;  
68.     }  
69. }  

 

３、测试类

Java代码 

1. package com.sunrex.demo02;  
2.   
3. import java.util.ArrayList;  
4. import java.util.HashMap;  
5. import java.util.List;  
6. import java.util.Map;  
7.   
8. import org.apache.commons.beanutils.PropertyUtils;  
9.   
10. public class PersonTest {  
11.     @SuppressWarnings("unchecked")  
12.     public static void main(String[] args) {  
13.         Person person = new Person();  
14.         try {  
15.             //simple property  
16.             PropertyUtils.setSimpleProperty(person, "username", "李四");  
17.             PropertyUtils.setSimpleProperty(person, "age", 22);  
18.             PropertyUtils.setSimpleProperty(person, "stature", 173.5f);  
19.             PropertyUtils.setSimpleProperty(person, "sex", new Boolean(false));  
20.               
21.             //index property  
22.             //List  
23.             List list = new ArrayList();  
24.             list.add("list value 0");  
25.             list.add("list value 1");  
26.             String listValue2 = "new list value 1";  
27.             PropertyUtils.setSimpleProperty(person, "list", list);  
28.             //将list设置到person之后，可以对里面的值进行修改  
29.             PropertyUtils.setIndexedProperty(person, "list[1]", listValue2);  
30.   
31.             //数组  
32.             String[] str = {"张三", "王五", "赵钱"};  
33.             person.setFriendsNames(str);  
34.             PropertyUtils.setIndexedProperty(person, "friendsNames[2]", "new赵钱");  
35.               
36.             //Map  
37.             Map<String, String> map = new HashMap<String, String>();  
38.             map.put("key1", "vlaue1");  
39.             map.put("key2", "vlaue2");  
40.             map.put("key3", "vlaue3");  
41.             person.setMaps(map);  
42.             PropertyUtils.setMappedProperty(person, "maps", "key1", "new value1");  
43.             PropertyUtils.setMappedProperty(person, "maps(key2)", "maps(key2) value");  
44.               
45.             //nest property  
46.             Address address = new Address();  
47.             address.setEmail("[email protected]");  
48.             List<String> telephoneList = new ArrayList<String>();  
49.             telephoneList.add("12345678911");  
50.             telephoneList.add("92345678911");  
51.             address.setTelephone(telephoneList);  
52.             person.setAddress(address);  
53.             PropertyUtils.setNestedProperty(person, "address.telephone[1]", "nest 11111111");  
54.             PropertyUtils.setNestedProperty(person, "address.email", "[email protected]");  
55.               
56.             System.out.println(PropertyUtils.getSimpleProperty(person, "username"));  
57.             System.out.println(PropertyUtils.getSimpleProperty(person, "age"));  
58.             System.out.println(PropertyUtils.getSimpleProperty(person, "stature"));  
59.             System.out.println(PropertyUtils.getSimpleProperty(person, "sex"));  
60.             System.out.println(PropertyUtils.getSimpleProperty(person, "list"));  
61.             //list  
62.             System.err.println(PropertyUtils.getIndexedProperty(person, "list[0]"));  
63.             System.err.println(PropertyUtils.getIndexedProperty(person, "list", 1));  
64.             //数组  
65.             System.out.println(PropertyUtils.getIndexedProperty(person, "friendsNames[0]"));  
66.             System.out.println(PropertyUtils.getIndexedProperty(person, "friendsNames", 1));  
67.             System.out.println(PropertyUtils.getIndexedProperty(person, "friendsNames[2]"));  
68.               
69.             //Map  
70.             System.err.println(PropertyUtils.getMappedProperty(person, "maps(key1)"));  
71.             System.err.println(PropertyUtils.getMappedProperty(person, "maps", "key2"));  
72.             System.err.println(PropertyUtils.getMappedProperty(person, "maps(key3)"));  
73.               
74.             //nest--嵌套输出   
75.             System.out.println(PropertyUtils.getNestedProperty(person, "address.email"));  
76.             System.out.println(PropertyUtils.getNestedProperty(person, "address.telephone[0]"));  
77.             System.out.println(PropertyUtils.getNestedProperty(person, "address.telephone[1]"));  
78.               
79.             //也可以使用如下方法获取值  
80.             System.out.println(PropertyUtils.getProperty(person, "address.telephone[1]"));  
81.         } catch (Exception e) {  
82.             // TODO Auto-generated catch block  
83.             e.printStackTrace();  
84.         }  
85.     }  
86. }  

 4、输出结果

李四
22
173.5
false
[list value 0, new list value 1]
list value 0
new list value 1
张三
王五
new赵钱
new value1
[email protected]
12345678911
nest 11111111
nest 11111111
maps(key2) value
vlaue3