Spring - XML方式setters方法注入属性（05）

其他 2018-09-14 12:08:56 阅读次数: 0

注入基本类型

public class UserDaoImpl implements UserDao{
    private String name;
    public void setName(String name) {
        this.name = name;
    }
    public String toString() {
        return "UserDaoImpl [name=" + name + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="name" value="Hello"></property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [name=Hello]
     * */
}

注入引用类型

public class UserDaoImpl implements UserDao{
    private String name;
    public void setName(String name) {
        this.name = name;
    }
    public String toString() {
        return "UserDaoImpl [name=" + name + "]";
    }
    public void save() {    }
}
public class UserServiceImpl implements UserService{
    private UserDao ud;
    public void setUd(UserDao ud) {
        this.ud = ud;
    }
    public String toString() {
        return "UserServiceImpl [ud=" + ud + "]";
    }
    public void save() { }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="name" value="Hello"></property>
</bean>

<bean id="userService" class="com.spring.firstday.UserServiceImpl">
    <property name="ud" ref="userDao"></property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserService us = (UserService)ac.getBean("userService");
        System.out.println(us);
    }
    /*Console:
     *      UserServiceImpl [ud=UserDaoImpl [name=Hello]]
     * */
}

注入数组

import java.util.Arrays;

public class UserDaoImpl implements UserDao{
    private String []name;
    public void setName(String []name) {
        this.name = name;
    }
    public String toString() {
        return "UserDaoImpl [name=" + Arrays.toString(name) + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="name">
        <list>
            <value>hello</value>
            <value>world</value>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [name=[hello, world]]
     * */
}

注入List

import java.util.List;

public class UserDaoImpl implements UserDao{
    private List<String> list;
    public void setList(List<String> list) {
        this.list = list;
    }
    public String toString() {
        return "UserDaoImpl [list=" + list + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="list">
        <list>
            <value>hello</value>
            <value>world</value>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [list=[hello, world]]
     * */
}

注入Vector

import java.util.Vector;

public class UserDaoImpl implements UserDao{
    private Vector<String> v;
    public void setV(Vector<String> v) {
        this.v = v;
    }
    public String toString() {
        return "UserDaoImpl [v=" + v + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="v">
        <list>
            <value>hello</value>
            <value>world</value>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [v=[hello, world]]
     * */
}

注入Set

import java.util.Set;

public class UserDaoImpl implements UserDao{
    private Set<String> set;
    public void setSet(Set<String> set) {
        this.set = set;
    }
    public String toString() {
        return "UserDaoImpl [set=" + set + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="set">
        <list>
            <value>hello</value>
            <value>world</value>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [set=[hello, world]]
     * */
}

注入Map

import java.util.Map;

public class UserDaoImpl implements UserDao{
    private Map<String, String> map;
    public void setMap(Map<String, String> map) {
        this.map = map;
    }
    public String toString() {
        return "UserDaoImpl [map=" + map + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="map">
        <map>
            <entry key="11" value="aa"></entry>
            <entry key="22" value="bb"></entry>
        </map>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [map={11=aa, 22=bb}]
     * */
}

注入二维数组

import java.util.Arrays;

public class UserDaoImpl implements UserDao{
    private String [][]strs;
    public void setStrs(String [][]strs) {
        this.strs = strs;
    }
    public String toString() {
        return "UserDaoImpl [strs=" + Arrays.deepToString(strs) + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="strs">
        <list>
            <list>
                <value>aaa</value>
                <value>bbb</value>
            </list>
            <list>
                <value>111</value>
                <value>222</value>
            </list>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [strs=[[aaa, bbb], [111, 222]]]
     * */
}

注入Vector<Vector>

import java.util.Vector;

public class UserDaoImpl implements UserDao{
    private Vector<Vector<String>> vv;
    public void setVv(Vector<Vector<String>> vv) {
        this.vv = vv;
    }
    public String toString() {
        return "UserDaoImpl [vv=" + vv + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="vv">
        <list>
            <list>
                <value>aaa</value>
                <value>bbb</value>
            </list>
            <list>
                <value>111</value>
                <value>222</value>
            </list>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [vv=[[aaa, bbb], [111, 222]]]
     * */
}

注入List，但泛型是引用变量

import java.util.Vector;

public class UserDaoImpl implements UserDao{
    private Vector<Vector<String>> vv;
    public void setVv(Vector<Vector<String>> vv) {
        this.vv = vv;
    }
    public String toString() {
        return "UserDaoImpl [vv=" + vv + "]";
    }
    public void save() {    }
}
import java.util.List;

public class UserServiceImpl implements UserService{
    private List<UserDao> lists;
    public void setLists(List<UserDao> lists) {
        this.lists = lists;
    }
    public String toString() {
        return "UserServiceImpl [lists=" + lists + "]";
    }
    public void save() { }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="vv">
        <list>
            <list>
                <value>aaa</value>
                <value>bbb</value>
            </list>
            <list>
                <value>111</value>
                <value>222</value>
            </list>
        </list>
    </property>
</bean>

<bean id="userService" class="com.spring.firstday.UserServiceImpl">
    <property name="lists">
        <list>
            <ref bean="userDao"/>
            <ref bean="userDao"/>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserService us = (UserService)ac.getBean("userService");
        System.out.println(us);
    }
    /*Console:
     *      UserServiceImpl [lists=[UserDaoImpl [vv=[[aaa, bbb], [111, 222]]], UserDaoImpl [vv=[[aaa, bbb], [111, 222]]]]]
     * */
}

注入Map，但key和value是引用变量

import java.util.Vector;

public class UserDaoImpl implements UserDao{
    private Vector<Vector<String>> vv;
    public void setVv(Vector<Vector<String>> vv) {
        this.vv = vv;
    }
    public String toString() {
        return "UserDaoImpl [vv=" + vv + "]";
    }
    public void save() {    }
}
import java.util.Map;

public class UserServiceImpl implements UserService{
    private Map<UserDao, UserDao> map;
    public void setLists(Map<UserDao, UserDao> map) {
        this.map = map;
    }
    public String toString() {
        return "UserServiceImpl [map=" + map + "]";
    }
    public void save() { }
}

<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="vv">
        <list>
            <list>
                <value>aaa</value>
                <value>bbb</value>
            </list>
            <list>
                <value>111</value>
                <value>222</value>
            </list>
        </list>
    </property>
</bean>

<bean id="userService" class="com.spring.firstday.UserServiceImpl">
    <property name="lists">
        <map>
            <entry key-ref="userDao" value-ref="userDao"></entry>
        </map>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserService us = (UserService)ac.getBean("userService");
        System.out.println(us);
    }
    /*Console:
     *      UserServiceImpl [map={UserDaoImpl [vv=[[aaa, bbb], [111, 222]]]=UserDaoImpl [vv=[[aaa, bbb], [111, 222]]]}]
     * */
}

List中注入Map

import java.util.List;
import java.util.Map;

public class UserDaoImpl implements UserDao{
    private List<Map<String, String>> list;
    public void setList(List<Map<String, String>> list) {
        this.list = list;
    }
    public String toString() {
        return "UserDaoImpl [list=" + list + "]";
    }
    public void save() {    }
}
<bean id="userDao" class="com.spring.firstday.UserDaoImpl">
    <property name="list">
        <list>
            <map>
                <entry key="11" value="aa"></entry>
                <entry key="22" value="bb"></entry>
            </map>
        </list>
    </property>
</bean>
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao ud = (UserDao)ac.getBean("userDao");
        System.out.println(ud);
    }
    /*Console:
     *      UserDaoImpl [list=[{11=aa, 22=bb}]]
     * */
}

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