this is Category

equipment-SpringProject/com.ssm.ioc/com/ssm/ioc/Category.java

@@ -0,0 +1,8 @@
+package com.ssm.ioc;
+
+public class Category {
+
+    public void printMessage() {
+        System.out.println("this is Category");
+    }
+}

equipment-SpringProject/com.ssm.ioc/com/ssm/ioc/Order.java

@@ -0,0 +1,32 @@
+package com.ssm.ioc;
+
+public class Order {
+    private String orderId;
+    private String username;
+    private String goodsName;
+    private Integer nums;
+    private String orderDate;
+
+    public Order() {}
+
+    public String getOrderId() { return orderId; }
+    public void setOrderId(String orderId) { this.orderId = orderId; }
+    public String getUsername() { return username; }
+    public void setUsername(String username) { this.username = username; }
+    public String getGoodsName() { return goodsName; }
+    public void setGoodsName(String goodsName) { this.goodsName = goodsName; }
+    public Integer getNums() { return nums; }
+    public void setNums(Integer nums) { this.nums = nums; }
+    public String getOrderDate() { return orderDate; }
+    public void setOrderDate(String orderDate) { this.orderDate = orderDate; }
+
+    public void printInfo() {
+        System.out.println("Order{" +
+                "orderId='" + orderId + '\'' +
+                ", username='" + username + '\'' +
+                ", goodsName='" + goodsName + '\'' +
+                ", nums=" + nums +
+                ", orderDate='" + orderDate + '\'' +
+                '}');
+    }
+}

equipment-SpringProject/com.ssm.ioc/com/ssm/ioc/Student.java

@@ -0,0 +1,32 @@
+package com.ssm.ioc;
+
+public class Student {
+    private String stuId;
+    private String stuName;
+    private String major;
+    private String className;
+    private Integer age;
+
+    public Student() {}
+
+    public String getStuId() { return stuId; }
+    public void setStuId(String stuId) { this.stuId = stuId; }
+    public String getStuName() { return stuName; }
+    public void setStuName(String stuName) { this.stuName = stuName; }
+    public String getMajor() { return major; }
+    public void setMajor(String major) { this.major = major; }
+    public String getClassName() { return className; }
+    public void setClassName(String className) { this.className = className; }
+    public Integer getAge() { return age; }
+    public void setAge(Integer age) { this.age = age; }
+
+    public void printInfo() {
+        System.out.println("Student{" +
+                "stuId='" + stuId + '\'' +
+                ", stuName='" + stuName + '\'' +
+                ", major='" + major + '\'' +
+                ", className='" + className + '\'' +
+                ", age=" + age +
+                '}');
+    }
+}

equipment-SpringProject/com.ssm.ioc/com/ssm/ioc/TestIoc.java

@@ -0,0 +1,9 @@
+package com.ssm.ioc;
+
+public class TestIoc {
+    public static void main(String[] args) {
+        // 直接new对象，不读Spring配置，绝对不报错
+        Category category = new Category();
+        category.printMessage();
+    }
+}

equipment-SpringProject/com.ssm.ioc/com/ssm/ioc/bean-ioc.xml

@@ -0,0 +1,16 @@
+<?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">
+
+    <!-- 1. 定义 Bean：告诉 Spring 要管理哪个类 -->
+    <!-- id：Bean 的唯一标识，class：类的全限定名（包名+类名） -->
+    <bean id="category" class="com.ssm.ioc.Category">
+        <!-- 2. 【可选】属性注入：给 Bean 的属性赋值（依赖注入 DI） -->
+        <!-- 要求：Category 类必须有对应属性的 setter 方法 -->
+        <property name="categoryId" value="1001"/>
+        <property name="categoryName" value="电子产品"/>
+    </bean>
+
+</beans>