注册功能

注册功能分析

分析:

  前端:携带数据格式{mobile:   ,code:   ,password:   }

  后端:

    1、视图类---》注册方法

    2、序列化类---》校验、保存

视图类

class UserLoginView(GenericViewSet):
    serializer_class = UserLoginSerializer

    # queryset没有可以不写
    #多方式登录
    @action(methods=['POST'], detail=False)
    def mul_login(self, request, *args, **kwargs):
        return self._login(request, *args, **kwargs)

    # 短信登录
    @action(methods=['POST'], detail=False)
    def sms_login(self, request, *args, **kwargs):
        return self._login(request, *args, **kwargs)

    #如果没有就注册,如果有就登录
    @action(methods=['POST'], detail=False)
    def mobile_register(self,request,*args,**kwargs):
        return self._login(request,*args,**kwargs)

    #不同路由不同序列化
    def get_serializer_class(self):
        if self.action == 'sms_login':
            return SMSLoginSerializer
        elif self.action == 'mul_login':
            return UserLoginSerializer
        elif self.action == 'mobile_register':
            return MobileRegisterSerializer
        else:
            return super().get_serializer_class()

    #登录接口
    def _login(self, request, *args, **kwargs):
        ser = self.get_serializer(data=request.data)
        ser.is_valid(raise_exception=True)
        username = ser.context.get('username')
        token = ser.context.get('token')
        icon = ser.context.get('icon')
        # icon 必须是字符串形式,不能是对象相似
        # {code:100,msg:成功,token:asdfasf,icon:asdfasdf,username:asdfasd}
        return APIResponse(username=username, token=token, iocn=icon)
        # {code:100,msg:成功,token:asdfasf,user:{id:1,username:xxx,icon:ssss}}
        # return APIResponse(token=token, user=ser.data) # 如果执行ser.data,就会走序列化

    # def password_change(self,request,*args, **kwargs):
    #     #从密码修改表中找数据,如果旧密码和新密码一致,就不能修改
    #     #找到旧密码
    #     mobile = request.data.get('mobile')
    #     password = request.data.get('password')



# 继承CreateModelMixin的create
class RegisterView(GenericViewSet, CreateModelMixin):
    serializer_class = UserRegisterSerializer

    @action(methods=['POST'], detail=False)
    def user_register(self, request, *args, **kwargs):

        # 内部执行了它:serializer.data---》走序列化---》基于create返回的user做序列化---》按照'mobile', 'code', 'password' 做序列化---》code不是表中字段,就报错了
        res = super().create(request, *args, **kwargs)

        return APIResponse(msg='注册成功')

        # ser = self.get_serializer(data=request.data)
        # print(111)
        # ser.is_valid(raise_exception=True)
        # ser.save()
        # return APIResponse(msg='恭喜您注册成功')

 

序列化类

# 用户名密码注册序列化
class UserRegisterSerializer(serializers.ModelSerializer):
    code = serializers.CharField(max_length=6, write_only=True)

    class Meta:
        model = User
        fields = ['mobile', 'password', 'code']

    def validate(self, attrs):
        mobile = attrs.get('mobile')
        code = attrs.get('code')
        old_code = cache.get('cache_mobile_%s' % mobile)
        if old_code == code or (settings.DEBUG and code == '8888'):
            attrs['username'] = mobile
            attrs.pop('code')
        else:
            raise ValidationError('验证码错误')
        return attrs

    # 重写create
    def create(self, validated_data):
        user = User.objects.create_user(**validated_data)
        return user


# 短信注册序列化
class MobileRegisterSerializer(serializers.ModelSerializer, LoginSerializer):
    code = serializers.CharField(max_length=6, write_only=True)  # 数据库中没有数据,所以反序列化

    class Meta:
        model = User
        fields = ['mobile', 'code']

    def _get_user(self, attrs):
        print(attrs)
        mobile = attrs.get('mobile')
        print(mobile)
        code = attrs.get('code')
        print(code)
        # 验证code是否正确
        old_code = cache.get('cache_mobile_%s' % mobile)
        if old_code == code or (settings.DEBUG and code == '8888'):
            # 根据手机号,取用户
            user = User.objects.filter(mobile=mobile).first()
            print(user)
            if user:
                return user
            else:
                attrs['username'] = mobile
                attrs['mobile'] = mobile
                attrs.pop('code')
                attrs['password'] = '123456'
                print(attrs)
                user = User.objects.create_user(**attrs)
                return user
        else:
            raise ValidationError('验证码不正确')

 

为什么写media才能访问?

  django  默认是不允许前端直接访问某个文件夹的

  但是有个static文件夹例外,需要额外配置

   如果想让用户访问,必须配置路由,使用serve函数放开

  path('media/<path:path>', serve, {'document_root': settings.MEDIA_ROOT})

   浏览器中访问media/icon/1.png---》能把settings.MEDIA_ROOT对应的文件夹下的icon/1.png返回给前端

  path('lqz/<path:path>', serve, {'document_root':os.path.join(BASE_DIR, 'lqz')})

  浏览器中访问 lqz/a.txt----->能把项目根路径下lqz对应的文件夹下的a.txt返回给前端

 

配置文件中debug作用

  开发阶段,debug为True,信息会显示的更丰富

    访问的路由如果不存在,就会把能访问的路由都显示出来

    程序出现异常,错误信息就会直接在浏览器上

    自动重启,只要改了代码,就会自动重启

  上线阶段,要改成False

 

ALLOWED_HOSTS的作用

 只有debug为False时,这个必须填

限制后端项目(django项目)能够部署在哪个ip的机器上,写个*,表示所有地址都可以

 

万能验证码

在项目中,为了知道是在调试模式还是上线模式,所以才用debug这个字段

  判断,如果是开发阶段,可以有个万能验证码

 

短信登录或者注册接口

  app只需要输入手机号和验证码,如果账号不存在,直接注册成功,并且登录成功,如果账号存在就是登录

  前端传入:{mobiel,code} ---》验证验证码是否正确--》拿着mobile去数据库查询,如果能查到,就说明注册过了,直接签发token返回———》如果查不到,没有注册过---》走注册逻辑完成注册——》再签发token,返回给前端

  这个接口,随机生成6位密码,以短信形式通知用户

  这个接口,密码为空,下次用账号密码登录,不允许登录

    后续改密码:user.set_password(new_password)   

    查密码check_password()

 

 

前端登录注册及页面

登录,注册,都写成组件----》在任意页面中,都能点击显示登录模态框

写好的组件,应该放在那个组件中----》不是页面组件(小组件)

点击登录按钮,把Login.vue 通过定位,占满全屏,透明度设为 0.5 ,纯黑色悲剧,覆盖在组件上

在Login.vue点关闭,要把Login.vue隐藏起来,父子通信之子传父,自定义事件

Header.vue

## 页面中
<span @click="go_login">登录</span>


<Login v-if="login_show" @close_login="close_login"></Login>
## data
login_show: false
### methods
   go_login() {
      this.login_show = true
    },
    close_login() {
      this.login_show = false
    }

Login.vue

<template>
  <div class="login">
    <span @click="close">X</span>

  </div>
</template>

<script>
export default {
  name: "Login",
  methods: {
    close() {
      this.$emit('close_login')
    }
  }

}
</script>

<style scoped>
.login {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.5);
}
</style>

 

前端登录功能

<template>
  <div class="login">
    <div class="box">
      <i class="el-icon-close" @click="close_login"></i>
      <div class="content">
        <div class="nav">
          <span :class="{active: login_method === 'is_pwd'}" @click="change_login_method('is_pwd')">密码登录</span>
          <span :class="{active: login_method === 'is_sms'}" @click="change_login_method('is_sms')">短信登录</span>
        </div>

        <el-form v-if="login_method === 'is_pwd'">
          <el-input
              placeholder="用户名/手机号/邮箱"
              prefix-icon="el-icon-user"
              v-model="username"
              clearable>
          </el-input>
          <el-input
              placeholder="密码"
              prefix-icon="el-icon-key"
              v-model="password"
              clearable
              show-password>
          </el-input>
          <el-button type="primary" @click="login">登录</el-button>
        </el-form>

        <el-form v-if="login_method === 'is_sms'">
          <el-input
              placeholder="手机号"
              prefix-icon="el-icon-phone-outline"
              v-model="mobile"
              clearable
              @blur="check_mobile">
          </el-input>
          <el-input
              placeholder="验证码"
              prefix-icon="el-icon-chat-line-round"
              v-model="sms"
              clearable>
            <template slot="append">
              <span class="sms" @click="send_sms">{{ sms_interval }}</span>
            </template>
          </el-input>
          <el-button @click="mobile_login" type="primary">登录</el-button>
        </el-form>

        <div class="foot">
          <span @click="go_register">立即注册</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      username: '',
      password: '',
      mobile: '',
      sms: '',  // 验证码
      login_method: 'is_pwd',
      sms_interval: '获取验证码',
      is_send: false,
    }
  },
  methods: {
    close_login() {
      this.$emit('close')
    },
    go_register() {
      this.$emit('go')
    },
    change_login_method(method) {
      this.login_method = method;
    },
    check_mobile() {
      if (!this.mobile) return;
      // js正则:/正则语法/
      // '字符串'.match(/正则语法/)
      if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
        this.$message({
          message: '手机号有误',
          type: 'warning',
          duration: 1000,
          onClose: () => {
            this.mobile = '';
          }
        });
        return false;
      }
      // 后台校验手机号是否已存在
      this.$axios({
        url: this.$settings.BASE_URL + 'user/mobile/check_mobile/?mobile=' + this.mobile,
        method: 'get',
      }).then(response => {
        if (response.data.code == 100) {
          this.$message({
            message: '账号正常,可以发送短信',
            type: 'success',
            duration: 1000,
          });
          // 发生验证码按钮才可以被点击
          this.is_send = true;
        } else {
          this.$message({
            message: '账号不存在',
            type: 'warning',
            duration: 1000,
            onClose: () => {
              this.mobile = '';
            }
          })
        }
      }).catch(() => {
      });
    },
    send_sms() {
      // this.is_send必须允许发生验证码,才可以往下执行逻辑
      if (!this.is_send) return;
      // 按钮点一次立即禁用
      this.is_send = false;

      let sms_interval_time = 60;
      this.sms_interval = "发送中...";

      // 定时器: setInterval(fn, time, args)
      // 往后台发送验证码
      this.$axios({
        url: this.$settings.BASE_URL + 'user/mobile/send_sms/',
        method: 'post',
        data: {
          mobile: this.mobile
        }
      }).then(response => {
        if (response.data.code == 100) { // 发送成功
          let timer = setInterval(() => {
            if (sms_interval_time <= 1) {
              clearInterval(timer);
              this.sms_interval = "获取验证码";
              this.is_send = true; // 重新回复点击发送功能的条件
            } else {
              sms_interval_time -= 1;
              this.sms_interval = `${sms_interval_time}秒后再发`;
            }
          }, 1000);
        } else {  // 发送失败
          this.sms_interval = "重新获取";
          this.is_send = true;
          this.$message({
            message: '短信发送失败',
            type: 'warning',
            duration: 3000
          });
        }
      }).catch(() => {
        this.sms_interval = "频率过快";
        this.is_send = true;
      })


    },
    login() {
      if (!(this.username && this.password)) {
        this.$message({
          message: '请填好账号密码',
          type: 'warning',
          duration: 1500
        });
        return false  // 直接结束逻辑
      }

      this.$axios({
        url: this.$settings.BASE_URL + 'user/login/mul_login/',
        method: 'post',
        data: {
          username: this.username,
          password: this.password,
        }
      }).then(response => {
        let username = response.data.username;
        let token = response.data.token;
        this.$cookies.set('username', username, '7d');
        this.$cookies.set('token', token, '7d');
        this.$emit('success', response.data);
      }).catch(error => {
        console.log(error.response.data)
      })
    },
    mobile_login() {
      if (!(this.mobile && this.sms)) {
        this.$message({
          message: '请填好手机与验证码',
          type: 'warning',
          duration: 1500
        });
        return false  // 直接结束逻辑
      }

      this.$axios({
        url: this.$settings.BASE_URL + 'user/login/sms_login/',
        method: 'post',
        data: {
          mobile: this.mobile,
          code: this.sms,
        }
      }).then(response => {
        if (response.data.code == 100) {
          let username = response.data.username;
          let token = response.data.token;
          this.$cookies.set('username', username, '7d');
          this.$cookies.set('token', token, '7d');
          this.$emit('success', response.data);
        } else {
          this.$message({
            message: '登录失败',
            type: 'warning',
            duration: 1500
          });
        }

      }).catch(error => {
        console.log(error.response.data)
      })
    }
  }
}
</script>

<style scoped>
.login {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.5);
}

.box {
  width: 400px;
  height: 420px;
  background-color: white;
  border-radius: 10px;
  position: relative;
  top: calc(50vh - 210px);
  left: calc(50vw - 200px);
}

.el-icon-close {
  position: absolute;
  font-weight: bold;
  font-size: 20px;
  top: 10px;
  right: 10px;
  cursor: pointer;
}

.el-icon-close:hover {
  color: darkred;
}

.content {
  position: absolute;
  top: 40px;
  width: 280px;
  left: 60px;
}

.nav {
  font-size: 20px;
  height: 38px;
  border-bottom: 2px solid darkgrey;
}

.nav > span {
  margin: 0 20px 0 35px;
  color: darkgrey;
  user-select: none;
  cursor: pointer;
  padding-bottom: 10px;
  border-bottom: 2px solid darkgrey;
}

.nav > span.active {
  color: black;
  border-bottom: 3px solid black;
  padding-bottom: 9px;
}

.el-input, .el-button {
  margin-top: 40px;
}

.el-button {
  width: 100%;
  font-size: 18px;
}

.foot > span {
  float: right;
  margin-top: 20px;
  color: orange;
  cursor: pointer;
}

.sms {
  color: orange;
  cursor: pointer;
  display: inline-block;
  width: 70px;
  text-align: center;
  user-select: none;
}
</style>

 

前端注册功能

<template>
  <div class="register">
    <div class="box">
      <i class="el-icon-close" @click="close_register"></i>
      <div class="content">
        <div class="nav">
          <span class="active">新用户注册</span>
        </div>
        <el-form>
          <el-input
              placeholder="手机号"
              prefix-icon="el-icon-phone-outline"
              v-model="mobile"
              clearable
              @blur="check_mobile">
          </el-input>
          <el-input
              placeholder="密码"
              prefix-icon="el-icon-key"
              v-model="password"
              clearable
              show-password>
          </el-input>
          <el-input
              placeholder="验证码"
              prefix-icon="el-icon-chat-line-round"
              v-model="sms"
              clearable>
            <template slot="append">
              <span class="sms" @click="send_sms">{{ sms_interval }}</span>
            </template>
          </el-input>
          <el-button @click="register" type="primary">注册</el-button>
        </el-form>
        <div class="foot">
          <span @click="go_login">立即登录</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Register",
  data() {
    return {
      mobile: '',
      password: '',
      sms: '',
      sms_interval: '获取验证码',
      is_send: false,
    }
  },
  methods: {
    close_register() {
      this.$emit('close', false)
    },
    go_login() {
      this.$emit('go')
    },
    check_mobile() {
      if (!this.mobile) return;
      // js正则:/正则语法/
      // '字符串'.match(/正则语法/)
      if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
        this.$message({
          message: '手机号有误',
          type: 'warning',
          duration: 1000,
          onClose: () => {
            this.mobile = '';
          }
        });
        return false;
      }
      // 后台校验手机号是否已存在
      this.$axios({
        url: this.$settings.BASE_URL + 'user/mobile/check_mobile/?mobile='+this.mobile,
        method: 'get',
      }).then(response => {
        if (response.data.code!=100) {
          this.$message({
            message: '欢迎注册我们的平台',
            type: 'success',
            duration: 1500,
          });
          // 发生验证码按钮才可以被点击
          this.is_send = true;
        } else {
          this.$message({
            message: '账号已存在,请直接登录',
            type: 'warning',
            duration: 1500,
          })
        }
      }).catch(() => {
      });
    },
    send_sms() {
      // this.is_send必须允许发生验证码,才可以往下执行逻辑
      if (!this.is_send) return;
      // 按钮点一次立即禁用
      this.is_send = false;

      let sms_interval_time = 60;
      this.sms_interval = "发送中...";

      // 定时器: setInterval(fn, time, args)

      // 往后台发送验证码
      this.$axios({
        url: this.$settings.BASE_URL + 'user/mobile/send_sms/',
        method: 'post',
        data: {
          mobile: this.mobile
        }
      }).then(response => {
        if (response.data.code==100) { // 发送成功
          let timer = setInterval(() => {
            if (sms_interval_time <= 1) {
              clearInterval(timer);
              this.sms_interval = "获取验证码";
              this.is_send = true; // 重新回复点击发送功能的条件
            } else {
              sms_interval_time -= 1;
              this.sms_interval = `${sms_interval_time}秒后再发`;
            }
          }, 1000);
        } else {  // 发送失败
          this.sms_interval = "重新获取";
          this.is_send = true;
          this.$message({
            message: '短信发送失败',
            type: 'warning',
            duration: 3000
          });
        }
      }).catch(() => {
        this.sms_interval = "频率过快";
        this.is_send = true;
      })


    },
    register() {
      if (!(this.mobile && this.sms && this.password)) {
        this.$message({
          message: '请填好手机、密码与验证码',
          type: 'warning',
          duration: 1500
        });
        return false  // 直接结束逻辑
      }

      this.$axios({
        url: this.$settings.BASE_URL + 'user/register/register/',
        method: 'post',
        data: {
          mobile: this.mobile,
          code: this.sms,
          password: this.password
        }
      }).then(response => {
        this.$message({
          message: '注册成功,3秒跳转登录页面',
          type: 'success',
          duration: 3000,
          showClose: true,
          onClose: () => {
            // 去向成功页面
            this.$emit('success')
          }
        });
      }).catch(error => {
        this.$message({
          message: '注册失败,请重新注册',
          type: 'warning',
          duration: 1500,
          showClose: true,
          onClose: () => {
            // 清空所有输入框
            this.mobile = '';
            this.password = '';
            this.sms = '';
          }
        });
      })
    }
  }
}
</script>

<style scoped>
.register {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.3);
}

.box {
  width: 400px;
  height: 480px;
  background-color: white;
  border-radius: 10px;
  position: relative;
  top: calc(50vh - 240px);
  left: calc(50vw - 200px);
}

.el-icon-close {
  position: absolute;
  font-weight: bold;
  font-size: 20px;
  top: 10px;
  right: 10px;
  cursor: pointer;
}

.el-icon-close:hover {
  color: darkred;
}

.content {
  position: absolute;
  top: 40px;
  width: 280px;
  left: 60px;
}

.nav {
  font-size: 20px;
  height: 38px;
  border-bottom: 2px solid darkgrey;
}

.nav > span {
  margin-left: 90px;
  color: darkgrey;
  user-select: none;
  cursor: pointer;
  padding-bottom: 10px;
  border-bottom: 2px solid darkgrey;
}

.nav > span.active {
  color: black;
  border-bottom: 3px solid black;
  padding-bottom: 9px;
}

.el-input, .el-button {
  margin-top: 40px;
}

.el-button {
  width: 100%;
  font-size: 18px;
}

.foot > span {
  float: right;
  margin-top: 20px;
  color: orange;
  cursor: pointer;
}

.sms {
  color: orange;
  cursor: pointer;
  display: inline-block;
  width: 70px;
  text-align: center;
  user-select: none;
}
</style>

Header.vue

<template>
  <div class="header">
    <div class="slogan">
      <p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
    </div>
    <div class="nav">
      <ul class="left-part">
        <li class="logo">
          <router-link to="/">
            <img src="../assets/img/head-logo.svg" alt="">
          </router-link>
        </li>
        <li class="ele">
          <span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
        </li>
      </ul>

      <div class="right-part">
        <div v-if="!username">
          <span @click="handleLogin">登录</span>
          <span class="line">|</span>
          <span @click="handleRegister">注册</span>
        </div>
        <div v-else>
          <span>{{ username }}</span>
          <span class="line">|</span>
          <span @click="logOut">注销</span>
        </div>
      </div>
      <Login v-if="loginShow" @close="handleClose" @success="success_login" @go="go_register"></Login>
      <Register v-if="registerShow" @close="handleRegisterClose" @success="success_register"
                @go="success_register"></Register>
    </div>
  </div>

</template>
<script>
import Login from "@/components/Login.vue";
import Register from "@/components/Register.vue";

export default {
  name: "Header",
  data() {
    return {
      url_path: sessionStorage.url_path || '/',
      loginShow: false,
      registerShow: false,
      username: '',
      token: ''
    }
  },
  methods: {
    handleRegister() {
      this.registerShow = true
    },
    handleRegisterClose() {
      this.registerShow = false
    },
    success_register() {
      this.registerShow = false
      this.loginShow = true
    },
    go_register() {
      this.registerShow = true
      this.loginShow = false
    },
    logOut() {
      this.username = ''
      this.token = ''
      this.$cookies.remove('username')
      this.$cookies.remove('token')
    },
    goPage(url_path) {
      // 已经是当前路由就没有必要重新跳转
      if (this.url_path !== url_path) {
        this.$router.push(url_path);
      }
      sessionStorage.url_path = url_path;
    },
    handleLogin() {
      this.loginShow = true
    },
    handleClose() {
      this.loginShow = false

    },
    success_login(data) {
      this.loginShow = false;  // 模态框消耗
      this.username = data.username;
      this.token = data.token;
    }
  },
  created() {
    sessionStorage.url_path = this.$route.path;
    this.url_path = this.$route.path;
    this.username = this.$cookies.get('username')
  },
  components: {
    Register,
    Login
  }
}
</script>


<style scoped>
.header {
  background-color: white;
  box-shadow: 0 0 5px 0 #aaa;
}

.header:after {
  content: "";
  display: block;
  clear: both;
}

.slogan {
  background-color: #eee;
  height: 40px;
}

.slogan p {
  width: 1200px;
  margin: 0 auto;
  color: #aaa;
  font-size: 13px;
  line-height: 40px;
}

.nav {
  background-color: white;
  user-select: none;
  width: 1200px;
  margin: 0 auto;

}

.nav ul {
  padding: 15px 0;
  float: left;
}

.nav ul:after {
  clear: both;
  content: '';
  display: block;
}

.nav ul li {
  float: left;
}

.logo {
  margin-right: 20px;
}

.ele {
  margin: 0 20px;
}

.ele span {
  display: block;
  font: 15px/36px '微软雅黑';
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.ele span:hover {
  border-bottom-color: orange;
}

.ele span.active {
  color: orange;
  border-bottom-color: orange;
}

.right-part {
  float: right;
}

.right-part .line {
  margin: 0 10px;
}

.right-part span {
  line-height: 68px;
  cursor: pointer;
}
</style>

 

redis介绍和安装

1 、redis是什么

数据库就是个存数据的地方:只是不同数据库数据组织,存放形式不一样

mysql  关系型数据库(oracle,sqlserver,postgrasql)

非关系型数据(no sql):redis,mongodb,clickhouse,infludb,elasticsearch,hadoop。。。

  没有sql:没有sql语句

  not olny sql 不仅仅是sql 

redis:一款纯内存存储的非关系型数据库(数据都在内存),速度非常快

 

2、redis特点:

https://www.cnblogs.com/liuqingzheng/articles/9833534.html

redis是一个key-value存储系统

数据类型丰富,支持5大数据类型:字符串,列表,hash(字典),集合,有序集合

纯内存操作

可以持久化:能都把内存数据,保存到硬盘上永久存储

 

3、redis为什么这快

  1、 纯内存,减少io

  2 、使用了 io多路复用的 epoll 网络模型

  3、数据操作是单线程,避免了线程间切换

    多个客户端同时操作,不会存在并发安全问题

4、安装

  redis:最新是7,  公司里5,6比较多

  redis:开源软件,免费的,他们不支持win

    epoll模型不支持win

  微软官方:基于源码修改---》编译成可执行文件

  第三方:https://github.com/tporadowski/redis/releases/

  win:下载安装包,一路下一步

    安装目录在环境变量中:任意路径敲 redis-server   reidis-cli 都能找到

    把redis做成了服务,以后通过服务启动即可

  mac:官网下载,解压即可

win,mac:两个可执行文件:

  redis-server   :等同于 mysqld

   reidis-cli     :等同于mysql

5 、启动,连接

  5.1 启动方式

    使用服务启动

      redis-server redis.windows-service.conf

    使用命令启动

      redis-server

  5.2 连接

    redis-cli

    redis-cli -h 地址 -p 端口(默认端口6379)

  5.3 图形化客户端(Navicate)

    resp:后来收费了

    连接上发现有16个库

6 放值

  使用resp放入值

7、取值

  cmd中 连接:get key

posted @ 2023-10-16 20:51  别管鱼油我了  阅读(39)  评论(0编辑  收藏  举报