Spring系列【10】按照Bean的名称自动装配
User.java
1 package com.lh.entity; 2 3 public class User { 4 private String name = "test"; //用户姓名 5 private Integer age = 27; //年龄 6 private String sex = "男"; //性别 7 public String getName() { 8 return name; 9 } 10 @Override 11 public String toString() { 12 return "User [name=" + name + ", age=" + age + ", sex=" + sex + "]"; 13 } 14 public void setName(String name) { 15 this.name = name; 16 } 17 public Integer getAge() { 18 return age; 19 } 20 public void setAge(Integer age) { 21 this.age = age; 22 } 23 public String getSex() { 24 return sex; 25 } 26 public void setSex(String sex) { 27 this.sex = sex; 28 } 29 30 }
PrintInfo.java
1 package com.lh.util; 2 3 import com.lh.entity.User; 4 5 public class PrintInfo { 6 private String mm="这是什么？"; 7 public String getMm() { 8 return mm; 9 } 10 11 public void setMm(String mm) { 12 this.mm = mm; 13 } 14 15 private User user; 16 public User getUser() { 17 return user; 18 } 19 20 @Override 21 public String toString() { 22 return "PrintInfo [mm=" + mm + ", user=" + user + "]"; 23 } 24 25 public void setUser(User user) { 26 this.user = user; 27 } 28 29 }
Spring配置文件
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 xmlns:context="http://www.springframework.org/schema/context" 5 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd 6 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd"> 7 8 <bean id="user" class="com.lh.entity.User"></bean> 9 <bean id="printInfo" class="com.lh.util.PrintInfo" 10 autowire="byName"> 11 </bean> 12 </beans>
注意byName和byType的用法，如果有多个User的bean，则byType会出错。
