修改了ddl并导入了数据，已经可以进行增删改查功能

code/database/MultiRelationsInsert.sql

@@ -0,0 +1,32 @@
+delete from T_Drugs;
+
+insert into T_Drugs values('10001','0.9%쪘뺏컷鬧<ECBBB7>捻',800);
+insert into T_Drugs values('10002','10%팥境鎌鬧<E98E8C>捻',1600);
+insert into T_Drugs values('10003','25%팥境鎌鬧<E98E8C>捻',500);
+insert into T_Drugs values('10004','50%팥境鎌鬧<E98E8C>捻',1250);
+insert into T_Drugs values('10005','갚솖굵擧鬧<EFBFBD>捻',323);
+insert into T_Drugs values('10006','뜩郭屆왯륩휫捻',155);
+insert into T_Drugs values('10007','로제옴북셉(북셉)',697);
+insert into T_Drugs values('10008','맘옰求빱뤽죕（括꼼）',52);
+insert into T_Drugs values('10009','맘있튬（튬셉）',168);
+insert into T_Drugs values('10010','릿렘抉擧맥텟更옮젓',985);
+insert into T_Drugs values('10011','뼝竟計鬧<EFBFBD>捻(鬧<>셉)',211);
+insert into T_Drugs values('10012','솖机郭꽝綾돛堈(綾돛堈)',129);
+insert into T_Drugs values('10013','솖南쪘팹갬鬧<EFBFBD>捻',681);
+insert into T_Drugs values('10014','영맘퀸스(퀸스셉)',52);
+insert into T_Drugs values('10015','영맘懦스켠',36);
+insert into T_Drugs values('10016','웸揭스켠（스켠)',89);
+insert into T_Drugs values('10017','윳갚팥極옮젓',67);
+insert into T_Drugs values('10018','적뜩엥凜鬧<EFBFBD>捻',225);
+insert into T_Drugs values('10019','쪘뺏솜鬧<EFBFBD>捻',569);
+insert into T_Drugs values('10020','쵠렷鱇計',44);
+insert into T_Drugs values('10021','형쭁計황늠뉼튬',49);
+insert into T_Drugs values('10022','흗擧컷주목鬧<EFBFBD>捻',113);
+insert into T_Drugs values('10023','흗擧弩<EFBFBD>衫西鬧<EFBFBD>捻',253);
+insert into T_Drugs values('10024','崗펠맷었愷젬삶었튬（튬셉）',55);
+insert into T_Drugs values('10025','郭<EFBFBD>羹AD두셉',169);
+insert into T_Drugs values('10026','郭<EFBFBD>羹B1',32);
+insert into T_Drugs values('10027','郭<EFBFBD>羹B6',87);
+insert into T_Drugs values('10028','俱흙痰吉擧갚鴨乞휫捻',12);
+insert into T_Drugs values('10029','机澁格랑-齡첫었羹堈',31);
+insert into T_Drugs values('10030','懦旿퀼（鬧<EFBFBD>셉）',462);

code/database/ddl.sql

@@ -1,7 +1,7 @@
 create table T_Drugs(
     ID          varchar(5),
-    name        varchar(20),
+    name        varchar(64),
-    num         numeric(3,0),
+    num         numeric(5,0),
     
     primary key (ID));
     
@@ -13,7 +13,7 @@ create table T_Norms(
     
 create table T_Vendor(
     ID          varchar(5),
-    name        varchar(20),
+    name        varchar(64),
     address     varchar(64),
     phonenumber varchar(11),
     monitor     varchar(5),

code/server/src/main/java/com/keafmd/dao/IDataDao.java

@@ -1,8 +1,11 @@
 package com.keafmd.dao;
 
 import com.keafmd.domain.Drugs;
+import com.keafmd.domain.User;
 import java.util.List;
 
-public interface IDrugDao {
+public interface IDataDao {
+    List<User> find_User();
+
     List<Drugs> find_drugs();
 }

code/server/src/main/java/com/keafmd/dao/IUserDao.java

@@ -1,8 +0,0 @@
-package com.keafmd.dao;
-
-import com.keafmd.domain.User;
-import java.util.List;
-
-public interface IUserDao {
-    List<User> find_User();
-}

code/server/src/main/java/com/keafmd/domain/Drugs.java

@@ -1,4 +1,33 @@
 package com.keafmd.domain;
 
 public class Drugs {
+    private Integer ID;
+    private String name;
+    private Integer num;
+
+    public Integer getID() {
+        return ID;
+    }
+    public void setID(Integer ID) {
+        this.ID = ID;
+    }
+
+    public String getName() {
+        return name;
+    }
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getNum() {
+        return num;
+    }
+    public void setNum(Integer num) {
+        this.num = num;
+    }
+
+    @Override
+    public String toString() {
+        return "Drugs:{ID=" + ID + ", name=" + name + ", num=" + num + "}";
+    }
 }

code/server/src/main/resources/com/keafmd/dao/IDataDao.xml

@@ -2,7 +2,7 @@
 <!DOCTYPE mapper
         PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-<mapper namespace="com.keafmd.dao.IUserDao">
+<mapper namespace="com.keafmd.dao.IDataDao">
 
     <select id="find_User" resultType="com.keafmd.domain.User">
         select * from T_User
@@ -13,4 +13,14 @@
             AND name like #{name}
         </if>
     </select>
+
+    <select id="find_drugs" resultType="com.keafmd.domain.Drugs">
+        select * from T_Drugs
+        <if test = "ID != null">
+            AND ID like #{ID}
+        </if>
+        <if test = "name != null">
+            AND name like #{name}
+        </if>
+    </select>
 </mapper>

code/server/src/main/resources/com/keafmd/dao/IUserDao.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE mapper
-        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
-        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-<mapper namespace="com.keafmd.dao.IUserDao">
-
-    <select id="findAll" resultType="com.keafmd.domain.User">
-        select * from instructor
-        <if test = "ID != null">
-            AND ID like #{ID}
-        </if>
-        <if test = "name != null">
-            AND name like #{name}
-        </if>
-    </select>
-</mapper>

code/server/src/test/java/com/keafmd/test/MybatisTest.java

@@ -1,7 +1,7 @@
 package com.keafmd.test;
 
-import com.keafmd.dao.IUserDao;
+import com.keafmd.dao.IDataDao;
-import com.keafmd.domain.User;
+import com.keafmd.domain.Drugs;
 import org.apache.ibatis.io.Resources;
 import org.apache.ibatis.session.SqlSession;
 import org.apache.ibatis.session.SqlSessionFactory;
@@ -22,11 +22,16 @@ public class MybatisTest {
         //3.使用工厂生产SqlSession对象
         SqlSession session = factory.openSession();
         //4.使用SqlSession创建Dao接口的代理对象
-        IUserDao userDao = session.getMapper(IUserDao.class);
+        /*IUserDao userDao = session.getMapper(IUserDao.class);
         //5.使用代理对象执行方法
-        List<User> users = Collections.unmodifiableList(userDao.find_User());
+        List<User> users = Collections.unmodifiableList(userDao.find_User());*/
-        for (User user : users) {
+        IDataDao drugDao = session.getMapper(IDataDao.class);
+        List<Drugs> drugs = Collections.unmodifiableList(drugDao.find_drugs());
+        /*for (User user : users) {
             System.out.println(user);
+        }*/
+        for (Drugs d : drugs) {
+            System.out.println(d);
         }
         //6.释放资源
         session.close();