ADD file via upload

CampusAndroid.java

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+package com.campus;
+
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@MapperScan("com.campus.mapper")
+public class CampusAndroid {
+    public static void main(String[] args)
+    {
+        SpringApplication.run(CampusAndroid.class, args);
+    }
+}

CampusController.java

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+package com.campus.controller;
+
+import com.campus.domain.Goods;
+import com.campus.domain.User;
+import com.campus.service.CampusService;
+import com.campus.utils.JsonData;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("campus")
+public class CampusController {
+    @Autowired
+    private CampusService campusService;
+
+    //登录
+    @PostMapping("userlogin")
+    public Object userlogin(@RequestBody User user)
+    {
+        //System.out.println(user);
+        if(campusService.userLogin(user))   return JsonData.buildSuccess();
+        else return JsonData.buildError("用户名或密码错误");
+    }
+
+    //添加新用户
+    @PostMapping("newuser")
+    public Object newuser(@RequestBody User user)
+    {
+        if (!campusService.userLogin(user)) {
+            if (campusService.newUser(user)) {
+                return JsonData.buildSuccess();
+            } else
+                return JsonData.buildError("注册失败");
+        }
+        else return  JsonData.buildError("用户名已存在");
+    }
+
+    //更新密码
+    @PostMapping("userupdate")
+    public Object userUpdate(@RequestBody User user) {
+        if (campusService.userUpdate(user)) {
+            return JsonData.buildSuccess();
+        } else
+            return JsonData.buildError("更新失败");
+    }
+    
+    //查询用户
+    @PostMapping("userselect")
+    public Object userselect(@RequestBody User user) {
+        if (!campusService.userselect(user).isEmpty()) {
+            return JsonData.buildSuccess();
+        }
+        else return JsonData.buildError("密码错误");
+    }
+    
+    //查询物品
+    @PostMapping("goodslist")
+    public Object goodslist(@RequestBody Goods goods)
+    {
+        List<Goods> goodsList=campusService.goodsSelect(goods);
+        if(!goodsList.isEmpty())
+            return JsonData.buildSuccess(goodsList);
+        else return JsonData.buildError("查询失败！");
+    }
+
+    //更新物品
+    @PostMapping("goodsupdate")
+    public Object goodsupdate(@RequestBody Goods goods)
+    {
+        if(campusService.goodsUpdate(goods))
+            return JsonData.buildSuccess();
+        else return JsonData.buildError("更新失败！");
+    }
+
+    //插入新物品
+    @PostMapping("goodsinter")
+    public Object goodsinter(@RequestBody Goods goods)
+    {
+        System.out.println(goods);
+        if(goods.getCommit()!=null&&goods.getImg()!=null&&goods.getPrice()!=null
+           &&goods.getType()!=null&&goods.getUsername()!=null&&goods.getPhone()!=null)
+        {
+            if(campusService.goodsInter(goods))
+                return JsonData.buildSuccess();
+            else
+                return JsonData.buildError("插入失败！");
+        }
+        else return JsonData.buildError("信息不完整！");
+    }
+
+    //删除物品
+    @PostMapping("goodsdelete")
+    public Object goodsdelete(@RequestBody Goods goods)
+    {
+         if(campusService.goodsDelete(goods))
+             return JsonData.buildSuccess();
+         else
+             return JsonData.buildError("删除失败！");
+    }
+
+}
+

CampusMapper.java

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+package com.campus.mapper;
+
+import com.campus.domain.Goods;
+import com.campus.domain.User;
+
+import java.util.List;
+
+public interface CampusMapper {
+    List<User> userLogin(User user);//登录
+    Boolean newUser(User user);  //注册
+    Boolean userUpdate(User user);  //更新密码
+    Boolean goodsInter(Goods goods);//插入新记录
+    Boolean goodsUpdate(Goods goods);//更新记录
+    Boolean goodsDelete(Goods goods);//删除记录
+    List<Goods> goodsSelect(Goods goods);//搜索
+}

CampusMapper.xml

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+<?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.campus.mapper.CampusMapper">
+
+
+<!--用户信息-->
+<resultMap id="user_List" type="User">
+    <id column="username" property="username"/>
+    <result column="password" property="password"/>
+</resultMap>
+
+<!--查询用户-->
+<select id="userLogin" resultMap="user_List" parameterType="User">
+    select
+    *
+    from user where username = #{username} and password = #{password}
+    <!--where>
+        <if test="username != null"> and username = #{username}</if>
+        <if test="passwork != null"> and passwork = #{passwork}</if>
+    </where-->
+</select>
+
+
+<!--用户注册-->
+<insert id="newUser" parameterType="User">
+    insert into user value
+    (#{username},#{password})
+</insert>
+
+<!--用户密码更新-->
+<update id="userUpdate" parameterType="User">
+        update user set password = #{password} where username=#{username}
+</update>
+
+
+<!--物品信息-->
+<resultMap id="goods_List" type="Goods">
+    <id column="gid" property="gid"/>
+    <result column="username" property="username"/>
+    <result column="type" property="type"/>
+    <result column="price" property="price"/>
+    <result column="img" property="img"/>
+    <result column="commit" property="commit"/>
+    <result column="phone" property="phone"/>
+</resultMap>
+
+<!--查找物品-->
+<select id="goodsSelect" resultMap="goods_List" parameterType="Goods">
+    select * from goods
+    <where>
+        <if test="type != null">and type=#{type}</if>
+        <if test="gid != 0">and gid =#{gid}</if>
+        <if test="username != null">and username=#{username}</if>
+    </where>
+    order by gid desc
+</select>
+
+<!--物品信息更新-->
+<update id="goodsUpdate" parameterType="Goods">
+    update goods
+    <trim prefix="set" suffixOverrides=",">
+        <if test="type != null">type=#{type},</if>
+        <if test="img != null">img=#{img},</if>
+        <if test="price != null">price=#{price},</if>
+        <if test="commit != null">commit =#{commit},</if>
+        <if test="phone != null">phone =#{phone}</if>
+    </trim>
+    where gid=#{gid}
+</update>
+
+<!--删除物品-->
+<delete id="goodsDelete" parameterType="Goods">
+    delete from goods where gid=#{gid}
+</delete>
+
+<!--新增物品记录-->
+<!--useGeneratedKeys="true"对应自增字段，keyProperty="id" 对应自己定义的类属性 ,keyColumn="id" 对应数据库表字段-->
+<insert id="goodsInter" parameterType="Goods" useGeneratedKeys="true" keyProperty="gid" keyColumn="gid">
+    insert into goods values
+    (#{username},#{price},#{type},#{commit},#{img},#{gid},#{phone})
+</insert>
+
+</mapper>

CampusService.java

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+package com.campus.service;
+
+import com.campus.domain.Goods;
+import com.campus.domain.User;
+
+import java.util.List;
+
+public interface CampusService{
+    Boolean userLogin(User user);
+    Boolean newUser(User user);
+    Boolean userUpdate(User user);
+    List<User> userselect(User user);
+    Boolean goodsInter(Goods goods);
+    Boolean goodsUpdate(Goods goods);
+    Boolean goodsDelete(Goods goods);
+    List<Goods> goodsSelect(Goods goods);
+}

CampusServiceimp.java

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+package com.campus.service.imp;
+
+import com.campus.domain.Goods;
+import com.campus.domain.User;
+import com.campus.mapper.CampusMapper;
+import com.campus.service.CampusService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class CampusServiceimp implements CampusService {
+
+    @Autowired
+    private CampusMapper campusMapper;
+
+    //查询用户是否存在
+    @Override
+    public Boolean userLogin(User user) {
+        List<User> users=campusMapper.userLogin(user);
+        if(!users.isEmpty())
+            return true;
+        else return false;
+    }
+
+    //注册新用户
+    @Override
+    public Boolean newUser(User user) {
+        if(campusMapper.newUser(user))
+            return true;
+        else return false;
+    }
+
+    //更新密码
+    @Override
+    public Boolean userUpdate(User user) {
+        if(campusMapper.userUpdate(user))
+            return true;
+        else return false;
+    }
+
+    //查询用户
+    @Override
+    public List<User> userselect(User user) {
+        return campusMapper.userLogin(user);
+
+    }
+
+    //插入物品
+    @Override
+    public Boolean goodsInter(Goods goods) {
+        if(campusMapper.goodsInter(goods))
+            return true;
+        else return false;
+    }
+
+    //更新物品
+    @Override
+    public Boolean goodsUpdate(Goods goods) {
+
+        if(campusMapper.goodsUpdate(goods))
+            return true;
+        else return false;
+    }
+
+    //删除物品
+    @Override
+    public Boolean goodsDelete(Goods goods) {
+        if(campusMapper.goodsDelete(goods))
+            return true;
+        else return false;
+    }
+
+    //查询物品
+    @Override
+    public List<Goods> goodsSelect(Goods goods) {
+       return campusMapper.goodsSelect(goods);
+    }
+}

Goods.java

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+package com.campus.domain;
+
+import com.sun.org.apache.xpath.internal.operations.Bool;
+
+import java.util.Arrays;
+
+public class Goods {
+    private String username;
+    private String type;
+    private String commit;
+    private String price;
+    private int gid;
+    private String img;
+    private String phone;
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getCommit() {
+        return commit;
+    }
+
+    public void setCommit(String commit) {
+        this.commit = commit;
+    }
+
+    public String getPrice() {
+        return price;
+    }
+
+    public void setPrice(String price) {
+        this.price = price;
+    }
+
+    public int getGid() {
+        return gid;
+    }
+
+    public void setGid(int gid) {
+        this.gid = gid;
+    }
+
+    public String getImg() {
+        return img;
+    }
+
+    public void setImg(String img) {
+        this.img = img;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    @Override
+    public String toString() {
+        return "Goods{" +
+                "username='" + username + '\'' +
+                ", type='" + type + '\'' +
+                ", commit='" + commit + '\'' +
+                ", price='" + price + '\'' +
+                ", gid=" + gid +
+                ", img='" + img + '\'' +
+                ", phone='" + phone + '\'' +
+                '}';
+    }
+}

JsonData.java

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+package com.campus.utils;
+
+public class JsonData {
+
+    private Integer code;//0表示成功，1表示处理中，-1表示失败
+
+    private Object data;
+
+    private String msg;
+
+    public JsonData(){}
+
+    public JsonData(Integer code, Object data, String msg){
+        this.code=code;
+        this.data=data;
+        this.msg=msg;
+    }
+
+    //成功不用返回数据
+    public static JsonData buildSuccess()
+    {
+        return new JsonData(0,null,null);
+    }
+
+    public static JsonData buildSuccess(Object data)
+    {
+        return new JsonData(0,data,null);
+    }
+
+    public static JsonData buildError(String msg)
+    {
+        return new JsonData(-1,null,msg);
+    }
+
+    public static JsonData buildError(Integer code,String msg)
+    {
+        return new JsonData(code,null,msg);
+    }
+
+    public Integer getCode() {
+        return code;
+    }
+
+    public void setCode(Integer code) {
+        this.code = code;
+    }
+
+    public Object getData() {
+        return data;
+    }
+
+    public void setData(Object data) {
+        this.data = data;
+    }
+
+    public String getMsg() {
+        return msg;
+    }
+
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+}

User.java

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+package com.campus.domain;
+
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+public class User {
+    private String username;
+    private String password;
+
+    
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "username='" + username + '\'' +
+                ", password='" + password + '\'' +
+                '}';
+    }
+}

campus.sql

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+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : MySQL57
+ Source Server Type    : MySQL
+ Source Server Version : 50725
+ Source Host           : localhost:3306
+ Source Schema         : campus
+
+ Target Server Type    : MySQL
+ Target Server Version : 50725
+ File Encoding         : 65001
+
+ Date: 16/06/2021 22:47:49
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for goods
+-- ----------------------------
+DROP TABLE IF EXISTS `goods`;
+CREATE TABLE `goods`  (
+  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  `price` varchar(10) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  `type` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  `commit` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  `img` longblob NOT NULL,
+  `gid` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
+  `phone` varchar(11) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  PRIMARY KEY (`gid`) USING BTREE,
+  INDEX `user`(`username`) USING BTREE,
+  CONSTRAINT `user` FOREIGN KEY (`username`) REFERENCES `user` (`username`) ON DELETE CASCADE ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 39 CHARACTER SET = utf8 COLLATE = utf8_bin ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Table structure for user
+-- ----------------------------
+DROP TABLE IF EXISTS `user`;
+CREATE TABLE `user`  (
+  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  `password` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  PRIMARY KEY (`username`) USING BTREE
+) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin ROW_FORMAT = Dynamic;
+
+SET FOREIGN_KEY_CHECKS = 1;