spring使用set方法注入的常见类型写法

首先配置spring的pom.xml文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.springtest</groupId>
  <artifactId>springtest</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>springtest Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>  
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>  
    <spring.version>4.1.7.RELEASE</spring.version>  
</properties>
  <dependencies>
  <!-- 添加Spring支持 -->  
<!-- 核心包 -->  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-core</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<!-- pring IOC的基础实现，包含访问配置文件、创建和管理bean等 -->  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-beans</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-context</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-context-support</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-web</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-webmvc</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-tx</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-aop</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-aspects</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-jdbc</artifactId>  
    <version>${spring.version}</version>  
</dependency>  
  
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>springtest</finalName>
  </build>
</project>

注入类型是String的写法

1. 新建bean类

package com.test.bean;

public class User {
    private String name;
    private String sex;
    
    public String getName() {
        return name;
    }
    public String getSex() {
        return sex;
    }
    public void setName(String name) {
        this.name = name;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public void sayHello() {
        System.out.println("我的名字："+name+",性别："+sex);
    }
}

2. 配置bean.xml，见id="user"的bean

<?xml version="1.0" encoding="UTF-8"?>
<!-- 引入约束 -->
<beans xmlns="http://www.springframework.org/schema/beans"  
       xmlns:p="http://www.springframework.org/schema/p"  
       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.xsd">  
    
    <!-- 简单属性配置 -->
    <bean id="user" class="com.test.bean.User">
            <property name="name" value="乔佳飞"></property>
            <property name="sex" value="男"></property>
    </bean>
    <!-- 对象属性配置 -->
     <bean id="userservice" class="com.test.bean.UserService">
            <property name="user" ref="user"></property>
    </bean>
    <!-- 复杂类型配置 -->
    <bean id="userfz" class="com.test.bean.UserFz">
    <!-- 数组配置 -->
            <property name="array">
                <list>
                    <value>arrayValue1</value>
                    <value>arrayValue2</value>
                </list>
            </property>
       <!-- list配置 -->    
            <property name="set">
                <set>
                    <value>setValue1</value>
                    <value>setValue2</value>
                </set>
            </property>
        <!-- list配置 -->    
            <property name="list">
                <list>
                    <value>listValue1</value>
                    <value>listValue2</value>
                </list>
            </property>
    <!-- MAP配置 -->    
            <property name="map">
                <map>
                    <entry key="mapkey1" value="mapvalue1"></entry>
                    <entry key="mapkey2" value="mapvalue2"></entry>
                </map>
            </property>
      <!-- MAP配置 -->    
            <property name="proper">
                <props>
                    <prop key="name">qiaojiafei</prop>
                    <prop key="sex">nan</prop>
                </props>
            </property>
    </bean>
 </beans>

3.测试类

    @Test
    public void bean1Test() {
        ApplicationContext ac = new ClassPathXmlApplicationContext("bean1.xml");
        User user = (User) ac.getBean("user");
        user.sayHello();
    }

输出：

我的名字：乔佳飞,性别：男

注入类型是引用对象的写法

1.新建类UserService

package com.test.bean;

public class UserService {

    private User user;

    public void setUser(User user) {
        this.user = user;
    }
    public void sayHello() {
        System.out.println("UserService-----------");
        System.out.println("UserService:"+user.getName()+user.getSex());
    }
}

2. 配置bean.xml，见上述xml的id="userservice"的bean

3.测试类

    @Test
    public void bean2Test() {
        ApplicationContext ac = new ClassPathXmlApplicationContext("bean1.xml");
        UserService us = (UserService) ac.getBean("userservice");
        us.sayHello();
    }

输出：

UserService-----------
UserService:乔佳飞男

注入类型是复杂类型的写法

1.新建类UserFz

package com.test.bean;

import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class UserFz {
    private Set set;
    private List list;
    private Map<String,String> map;
    private String array[];
    private Properties proper;
    
    public Set getSet() {
        return set;
    }
    public void setSet(Set set) {
        this.set = set;
    }
    public List getList() {
        return list;
    }
    public void setList(List list) {
        this.list = list;
    }
    public Map<String, String> getMap() {
        return map;
    }
    public void setMap(Map<String, String> map) {
        this.map = map;
    }
    public String[] getArray() {
        return array;
    }
    public void setArray(String[] array) {
        this.array = array;
    }
    public Properties getProper() {
        return proper;
    }
    public void setProper(Properties proper) {
        this.proper = proper;
    }
    
    public void sayHello() {
        System.out.println("UserFz----array:"+array+",set:"+set+",list:"+list+",map:"+map
                +",proper:"+proper);
    }
    
}

2.配置bean.xml，见上述xml的id="userfz"的bean

3.测试类

    @Test
    public void bean3Test() {
        ApplicationContext ac = new ClassPathXmlApplicationContext("bean1.xml");
        UserFz usf = (UserFz) ac.getBean("userfz");
        usf.sayHello();
    }

输出：

UserFz----array:[Ljava.lang.String;@670b40af,set:[setValue1, setValue2],list:[listValue1, listValue2],map:{mapkey1=mapvalue1, mapkey2=mapvalue2},proper:{name=qiaojiafei, sex=nan}