spring 配置檔案中如何注入map list set等型別
阿新 • • 發佈:2019-02-08
先定義一個bean
import java.util.List; import java.util.Map; import java.util.Properties; import java.util.Set; public class MessageBean { private String username; private String password; private int size; private List<String> citys; private Set<String> friends; private Map<Integer,String> books; private Properties props; public void setProps(Properties props) { this.props = props; } public void setFriends(Set<String> friends) { this.friends = friends; } public void setSize(int size) { this.size = size; } public void setPassword(String password) { this.password = password; } public void setUsername(String username) { this.username = username; } public void setCitys(List<String> citys) { this.citys = citys; } public void setBooks(Map<Integer, String> books) { this.books = books; } }
在xml裡配置
<beans> <bean id="userdao" class="com.user.impl.UserDAO"> </bean> <!-- setter方式注入 --> <bean id="useraction" class="com.action.UserAction"> <property name="userDao" ref="userdao"> </property> </bean> <!-- 構造器方式注入 --> <bean id="useraction1" class="com.action.UserAction2"> <constructor-arg index="0" ref="userdao"/> </bean> <!-- 各種型別值注入的寫法 --> <bean id="messagebean" class="com.bean.MessageBean"> <property name="props"> <props> <prop key="url">http://www.sina.com.cn</prop> <prop key="username">lisi</prop> <prop key="password">123456</prop> </props> </property> <property name="books"> <map> <entry key="10" value="playboy"> </entry> <entry key="11" value="java"> </entry> <entry key="12" value="rdis"> </entry> </map> </property> <property name="friends"> <set> <value>張3</value> <value>李4</value> <value>王5</value> </set> </property> <property name="citys"> <list> <value>北京</value> <value>上海</value> <value>廣州</value> </list> </property> <property name="username"> <value>admin</value> </property> <property name="password"> <value>123456</value> </property> <property name="size"> <value>25</value> </property> </bean> </beans>