这篇文章主要介绍“Spring依赖注入多种类型数据的代码怎么写”，在日常操作中，相信很多人在Spring依赖注入多种类型数据的代码怎么写问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”Spring依赖注入多种类型数据的代码怎么写”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
Student实体类
package entity;import java.util.*;public class Student { private int id; private String name; private StudentClass studentClass; private String[] books; private List<String> hobbies; private Map<String, String> cards; private Set<String> games; private String wife; private Properties info; public int getId() { return id; } public void setId(int id) { this.id = id; public String getName() { return name; public void setName(String name) { this.name = name; public StudentClass getStudentClass() { return studentClass; public void setStudentClass(StudentClass studentClass) { this.studentClass = studentClass; public String[] getBooks() { return books; public void setBooks(String[] books) { this.books = books; public List<String> getHobbies() { return hobbies; public void setHobbies(List<String> hobbies) { this.hobbies = hobbies; public Map<String, String> getCards() { return cards; public void setCards(Map<String, String> cards) { this.cards = cards; public Set<String> getGames() { return games; public void setGames(Set<String> games) { this.games = games; public String getWife() { return wife; public void setWife(String wife) { this.wife = wife; public Properties getInfo() { return info; public void setInfo(Properties info) { this.info = info; @Override public String toString() { return "Student{" + "id=" + id + ", name='" + name + '\'' + ", studentClass=" + studentClass + ", books=" + Arrays.toString(books) + ", hobbies=" + hobbies + ", cards=" + cards + ", games=" + games + ", wife='" + wife + '\'' + ", info=" + info + '}';}StudentsClass实体类
package entity;public class StudentClass { private int id; private String name; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } @Override public String toString() { return "Class{" + "id=" + id + ", name='" + name + '\'' + '}'; }}beans.xml
下面展示的数据类型有：一般类型、对象、数组、List、Map、Set、空值、Properties
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" 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"> <bean id="studentClass1" class="entity.StudentClass"> <property name="id" value="1"/> <property name="name" value="软件工程3班"/> </bean> <bean id="user1" class="entity.Student"> <!--一般类型--> <property name="id" value="1"/> <property name="name" value="tom"/> <!--对象--> <property name="studentClass" ref="studentClass1"/> <!--数组--> <property name="books"> <array> <value>Java编程思想</value> <value>MySQL必知必会</value> <value>平凡的世界</value> </array> </property> <!--List--> <property name="hobbies"> <list> <value>唱</value> <value>跳</value> <value>rap</value> <value>打篮球</value> </list> </property> <!--Map--> <property name="cards"> <map> <entry key="身份证" value="123"/> <entry key="校园卡" value="321"/> </map> </property> <!--Set--> <property name="games"> <set> <value>LOL</value> <value>DNF</value> <value>COC</value> </set> </property> <!--空值--> <property name="wife"> <null/> </property> <!--Properties--> <property name="info"> <props> <prop key="userName">root</prop> <prop key="password">123456</prop> </props> </property> </bean></beans>测试
import config.MyConfig;import entity.Student;import org.springframework.context.ApplicationContext;import org.springframework.context.annotation.AnnotationConfigApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class MyTest { public static void main(String[] args) { ApplicationContext context=new ClassPathXmlApplicationContext("beans.xml"); Student student = (Student) context.getBean("user1"); System.out.println(student); }}到此，关于“Spring依赖注入多种类型数据的代码怎么写”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注编程网网站，小编会继续努力为大家带来更多实用的文章！
