装配SpringBean(三)--XML方式实例

前一篇文章中已经介绍了XML方式装配bean的方式，本文将综合这些方式举一个实例并进行测试，我会把所有类型的参数都放在同一个类中进行测试，下面是我的类结构：

上图是我画的一个基本结构，可以看出该类中有基本类型变量、引用变量、属性变量、集合变量且集合元素有基本类型和引用类型，我的引用类型中所有变量使用基本类型，所以先来创建两个引用类型CoderCard和CoderProject。

一、装配bean

1⃣️创建CoderCard.java

 1 public class CoderCard {
 2     private String id;
 3     private String cardNotes;
 4     private String coderId;
 5 
 6     public String getId() {
 7         return id;
 8     }
 9 
10     public void setId(String id) {
11         this.id = id == null ? null : id.trim();
12     }
13 
14     public String getCardNotes() {
15         return cardNotes;
16     }
17 
18     public void setCardNotes(String cardNotes) {
19         this.cardNotes = cardNotes == null ? null : cardNotes.trim();
20     }
21 
22     public String getCoderId() {
23         return coderId;
24     }
25 
26     public void setCoderId(String coderId) {
27         this.coderId = coderId == null ? null : coderId.trim();
28     }
29 }

2⃣️创建CoderProject.java

 1 public class CoderProject {
 2     private String id;
 3     private String projectName;
 4     private String projectVersion;
 5     private String projectDesc;
 6 
 7     public String getId() {
 8         return id;
 9     }
10 
11     public void setId(String id) {
12         this.id = id == null ? null : id.trim();
13     }
14 
15     public String getProjectName() {
16         return projectName;
17     }
18 
19     public void setProjectName(String projectName) {
20         this.projectName = projectName == null ? null : projectName.trim();
21     }
22 
23     public String getProjectVersion() {
24         return projectVersion;
25     }
26 
27     public void setProjectVersion(String projectVersion) {
28         this.projectVersion = projectVersion == null ? null : projectVersion.trim();
29     }
30 
31     public String getProjectDesc() {
32         return projectDesc;
33     }
34 
35     public void setProjectDesc(String projectDesc) {
36         this.projectDesc = projectDesc == null ? null : projectDesc.trim();
37     }
38 }

3⃣️创建Coder.java

  1 public class Coder {
  2     private String id;
  3     private String coderName;
  4     private Integer coderAge;
  5     private Integer coderSalary;
  6         private CoderCard coderCard;
  7         private Properties prop;
  8 
  9     // 集合元素是基本类型
 10     private List<String> coderBugList;
 11 
 12     private Map<String, String> coderBugMap;
 13 
 14     private Set<String> coderBugSet;
 15 
 16     private String[] coderBugArray;
 17 
 18     // 集合元素是引用类型
 19     private List<CoderProject> coderProjectList;
 20 
 21     private Map<CoderCard, CoderProject> coderProjectMap;
 22 
 23     private Set<CoderProject> coderProjectSet;
 24 
 25     private CoderProject[] coderProjectArray;
 26 
 27     public String getId() {
 28         return id;
 29     }
 30 
 31     public void setId(String id) {
 32         this.id = id == null ? null : id.trim();
 33     }
 34 
 35     public String getCoderName() {
 36         return coderName;
 37     }
 38 
 39     public void setCoderName(String coderName) {
 40         this.coderName = coderName == null ? null : coderName.trim();
 41     }
 42 
 43     public Integer getCoderAge() {
 44         return coderAge;
 45     }
 46 
 47     public void setCoderAge(Integer coderAge) {
 48         this.coderAge = coderAge;
 49     }
 50 
 51     public Integer getCoderSalary() {
 52         return coderSalary;
 53     }
 54 
 55     public void setCoderSalary(Integer coderSalary) {
 56         this.coderSalary = coderSalary;
 57     }
 58 
 59     public CoderCard getCoderCard() {
 60         return coderCard;
 61     }
 62 
 63     public void setCoderCard(CoderCard coderCard) {
 64         this.coderCard = coderCard;
 65     }
 66 
 67     public List<String> getCoderBugList() {
 68         return coderBugList;
 69     }
 70 
 71     public void setCoderBugList(List<String> coderBugList) {
 72         this.coderBugList = coderBugList;
 73     }
 74 
 75     public Map<String, String> getCoderBugMap() {
 76         return coderBugMap;
 77     }
 78 
 79     public void setCoderBugMap(Map<String, String> coderBugMap) {
 80         this.coderBugMap = coderBugMap;
 81     }
 82 
 83     public Set<String> getCoderBugSet() {
 84         return coderBugSet;
 85     }
 86 
 87     public void setCoderBugSet(Set<String> coderBugSet) {
 88         this.coderBugSet = coderBugSet;
 89     }
 90 
 91     public Properties getProp() {
 92         return prop;
 93     }
 94 
 95     public void setProp(Properties prop) {
 96         this.prop = prop;
 97     }
 98 
 99     public String[] getCoderBugArray() {
100         return coderBugArray;
101     }
102 
103     public void setCoderBugArray(String[] coderBugArray) {
104         this.coderBugArray = coderBugArray;
105     }
106 
107     public List<CoderProject> getCoderProjectList() {
108         return coderProjectList;
109     }
110 
111     public void setCoderProjectList(List<CoderProject> coderProjectList) {
112         this.coderProjectList = coderProjectList;
113     }
114 
115     public Map<CoderCard, CoderProject> getCoderProjectMap() {
116         return coderProjectMap;
117     }
118 
119     public void setCoderProjectMap(Map<CoderCard, CoderProject> coderProjectMap) {
120         this.coderProjectMap = coderProjectMap;
121     }
122 
123     public Set<CoderProject> getCoderProjectSet() {
124         return coderProjectSet;
125     }
126 
127     public void setCoderProjectSet(Set<CoderProject> coderProjectSet) {
128         this.coderProjectSet = coderProjectSet;
129     }
130 
131     public CoderProject[] getCoderProjectArray() {
132         return coderProjectArray;
133     }
134 
135     public void setCoderProjectArray(CoderProject[] coderProjectArray) {
136         this.coderProjectArray = coderProjectArray;
137     }
138 
139 }

4⃣️XML中进行装配：spring-bean.xml

  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         http://www.springframework.org/schema/beans/spring-beans.xsd">
  6 
  7 
  8     <bean id="coder" class="com.hyc.pojo.Coder">
  9         <!-- 装配简易值 -->
 10         <property name="id" value="1"></property>
 11         <property name="coderName" value="张三"></property>
 12         <property name="coderAge" value="26"></property>
 13         <property name="coderSalary" value="10000"></property>
 14         <!--装配对象 -->
 15         <property name="coderCard" ref="coderCard"></property>
 16         <!-- 装配Properties -->
 17         <property name="prop">
 18             <props>
 19                 <prop key="bug-key-1">bug-prop-1</prop>
 20                 <prop key="bug-key-2">bug-prop-2</prop>
 21                 <prop key="bug-key-3">bug-prop-3</prop>
 22             </props>
 23         </property>
 24         <!-- 装配集合，集合元素是基本类型 -->
 25         <!-- 基本类型－装配List -->
 26         <property name="coderBugList">
 27             <list>
 28                 <value>bug-list-1</value>
 29                 <value>bug-list-2</value>
 30                 <value>bug-list-3</value>
 31             </list>
 32         </property>
 33         <!-- 基本类型－装配Map -->
 34         <property name="coderBugMap">
 35             <map>
 36                 <entry key="bug1" value="bug-map-1" />
 37                 <entry key="bug2" value="bug-map-2" />
 38                 <entry key="bug3" value="bug-map-3" />
 39             </map>
 40         </property>
 41         <!-- 基本类型－装配Set -->
 42         <property name="coderBugSet">
 43             <set>
 44                 <value>bug-set-1</value>
 45                 <value>bug-set-2</value>
 46                 <value>bug-set-3</value>
 47             </set>
 48         </property>
 49         <!-- 基本类型－装配Array -->
 50         <property name="coderBugArray">
 51             <array>
 52                 <value>bug-array-1</value>
 53                 <value>bug-array-2</value>
 54                 <value>bug-array-3</value>
 55             </array>
 56         </property>
 57 
 58         <!-- 装配集合，集合元素是引用类型 -->
 59         <!-- 引用类型－装配List -->
 60         <property name="coderProjectList">
 61             <list>
 62                 <ref bean="coderProject1" />
 63                 <ref bean="coderProject2" />
 64             </list>
 65         </property>
 66         <!-- 引用类型－装配Map -->
 67         <property name="coderProjectMap">
 68             <map>
 69                 <entry key-ref="coderCard1" value-ref="coderProject1" />
 70                 <entry key-ref="coderCard2" value-ref="coderProject2" />
 71             </map>
 72         </property>
 73         <!-- 引用类型－装配Set -->
 74         <property name="coderProjectSet">
 75             <set>
 76                 <ref bean="coderProject1" />
 77                 <ref bean="coderProject2" />
 78             </set>
 79         </property>
 80         <!-- 引用类型－装配Array -->
 81         <property name="coderProjectArray">
 82             <array>
 83                 <ref bean="coderProject1" />
 84                 <ref bean="coderProject2" />
 85             </array>
 86         </property>
 87     </bean>
 88 
 89     <!-- 对象作为成员变量 -->
 90     <bean id="coderCard" class="com.hyc.pojo.CoderCard">
 91         <property name="id" value="1"></property>
 92         <property name="cardNotes" value="张三的工牌"></property>
 93         <property name="coderId" value="1"></property>
 94     </bean>
 95     <!-- 对象作为成员变量 -->
 96     <bean id="coderCard1" class="com.hyc.pojo.CoderCard">
 97         <property name="id" value="2"></property>
 98         <property name="cardNotes" value="李四的工牌"></property>
 99         <property name="coderId" value="2"></property>
100     </bean>
101 
102     <bean id="coderCard2" class="com.hyc.pojo.CoderCard">
103         <property name="id" value="3"></property>
104         <property name="cardNotes" value="王麻子的工牌"></property>
105         <property name="coderId" value="3"></property>
106     </bean>
107 
108     <bean id="coderProject1" class="com.hyc.pojo.CoderProject">
109         <property name="id" value="1"></property>
110         <property name="projectName" value="管理系统"></property>
111         <property name="projectVersion" value="V1.0"></property>
112         <property name="projectDesc" value="管理配置"></property>
113     </bean>
114     <bean id="coderProject2" class="com.hyc.pojo.CoderProject">
115         <property name="id" value="2"></property>
116         <property name="projectName" value="存储系统"></property>
117         <property name="projectVersion" value="V1.0"></property>
118         <property name="projectDesc" value="存储配置"></property>
119     </bean>
120 
121 </beans>

二、测试装配结果

1⃣️编写测试方法

因为我测试使用的是junit单元测试，所以先来编写一个单元测试积基类，完成ClassPathXmlApplicationContext类的实例化等操作；

第一步：创建单元测试基类

 1 package com.test.xml;
 2 
 3 import org.junit.After;
 4 import org.junit.Before;
 5 import org.springframework.context.support.ClassPathXmlApplicationContext;
 6 
 7 /**
 8  * Unit test for simple App.
 9  */
10 public class BaseTest {
11 
12     public String xmlPath;
13     public ClassPathXmlApplicationContext context;
14 
15     public BaseTest(String xmlPath) {
16         this.xmlPath = xmlPath;
17     }
18 
19     @Before
20     public void before() {
21         if (xmlPath.isEmpty()) {
22             xmlPath = "classpath*:spring-*.xml";
23         }
24         context = new ClassPathXmlApplicationContext(xmlPath.split("[,\s]"));
25         context.start();
26     }
27 
28     @SuppressWarnings("deprecation")
29     @After
30     public void after() {
31         context.destroy();
32     }
33 
34 }

第二步：创建bean装配的测试类，编写测试方法

 1 package com.test.xml;
 2 
 3 import java.util.List;
 4 import java.util.Map;
 5 import java.util.Properties;
 6 import java.util.Set;
 7 
 8 import org.junit.Test;
 9 
10 import com.hyc.controller.CoderController;
11 import com.hyc.pojo.Coder;
12 import com.hyc.pojo.CoderCard;
13 import com.hyc.pojo.CoderProject;
14 
15 /*
16  * 各种数据类型装载测试（XML方式）
17  */
18 public class SpringBeanTest extends BaseTest {
19     public SpringBeanTest() {
20         super("classpath*:spring-bean.xml");
21     }
22 
23     /**
24      * 基本数据类型装配测试
25      */
26     @Test
27     public void testBaseBean() {
28         Coder coder = (Coder) super.context.getBean("coder");
29         String name = coder.getCoderName();
30         System.out.println("name:" + name);
31         int age = coder.getCoderAge();
32         System.out.println("age:" + age);
33         int salary = coder.getCoderSalary();
34         System.out.println("salary:" + salary);
35         String cardNotes = coder.getCoderCard().getCardNotes();
36         System.out.println("cardNotes:" + cardNotes);
37         Properties props = coder.getProp();
38         System.out.println("props:" + props.getProperty("bug-key-1"));
39     }
40 
41     /**
42      * 装配集合类型，集合元素是基本数据类型
43      */
44     @Test
45     public void testBaseCollection() {
46         Coder coder = (Coder) super.context.getBean("coder");
47         List<String> bugList = coder.getCoderBugList();
48         System.out.println("bugList:" + bugList.size());
49         Map<String, String> bugMap = coder.getCoderBugMap();
50         System.out.println("bugMap:" + bugMap.size());
51         String[] bugArray = coder.getCoderBugArray();
52         System.out.println("bugArray:" + bugArray.length);
53         Set<String> bugSet = coder.getCoderBugSet();
54         System.out.println("bugSet:" + bugSet.size());
55     }
56 
57     /**
58      * 装配集合类型，集合元素是引用类型
59      */
60     @Test
61     public void testRefCollection() {
62         Coder coder = (Coder) super.context.getBean("coder");
63         List<CoderProject> projectList = coder.getCoderProjectList();
64         System.out.println("projectList:" + projectList.size());
65         Map<CoderCard, CoderProject> projectMap = coder.getCoderProjectMap();
66         System.out.println("projectMap:" + projectMap.size());
67         CoderProject[] projectArray = coder.getCoderProjectArray();
68         System.out.println("projectArray:" + projectArray.length);
69         Set<CoderProject> projectSet = coder.getCoderProjectSet();
70         System.out.println("projectSet:" + projectSet.size());
71     }
72 
73 }

以上就是测试代码：

第一个方法是测试基本类型、引用类型和Properties类型；

第二个方法是测试集合类型，集合元素是基本类型；

第三个方法是测试集合类型，集合元素是引用类型；

测试时只要选中方法名，右击－Run As-Junit Test即可，如果要同时测试所有的方法，直接在该类中右击－Run As-Junit Test就行。测试集合的时候我只是输出了集合的size

2⃣️查看测试结果

以上就是通过XML装配bean的完整实例，其实这种方式是比较简单的，缺点是需要配置很多内容，为了解决这一缺陷，spring又提供了另外一种注解的方式，下一篇文章我将进行总结。

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原文地址：https://www.cnblogs.com/hellowhy/p/9712630.html