前端验证码登陆模块的实现(vue实现)

亦凉 2022-12-04 08:47 276阅读 0赞

实现效果如下：  
![在这里插入图片描述][20200907113705756.gif_pic_center]  
用vue写的，但实现逻辑都是一样的。

摘取出来的输入框的html部分：

//号码输入框
            <input
                class="login-input login-phone"
                placeholder="请输入你的手机号码"
                type="number"
                v-model="loginNumberVal"
                @input="lenControl"
              />
              
           //验证码输入框
           <input
                class="login-input login-code"
                placeholder="请输入短信验证码"
                type="number"
                v-model="loginCodeVal"
                @input="lenControl"
              />
    
          //获取验证码按钮
         <input
                class="getCode"
                type="button"
                @click.stop="toGetCode"
                ref="eleCode"
                :value="codeText"
              />

完整的js部分：

整个完整的代码如下所示：

<template>
      <div class="login">
        <section class="login-box">
          <div class="login-wrap">
            <div class="login-icon">
              
            </div>
            <div class="input-wrap">
              <input
                class="login-input login-phone"
                placeholder="请输入你的手机号码"
                type="number"
                v-model="loginNumberVal"
                @input="lenControl"
              />
              <img class="icon-left" src="@/assets/images/login_phone.png" />
              <img class="icon-right" @click="delBtn" v-if="isDel" src="@/assets/images/login_del.png" />
            </div>
            <div class="input-wrap">
              <input
                class="login-input login-code"
                placeholder="请输入短信验证码"
                type="number"
                v-model="loginCodeVal"
                @input="lenControl"
              />
              <img class="icon-left" src="@/assets/images/login_code.png" />
              <input
                class="getCode"
                type="button"
                @click.stop="toGetCode"
                ref="eleCode"
                :value="codeText"
              />
              
            </div>
            <hll-button title="登录" @click.stop="toLogin" class="login-btn" :disabled="isDisabled"></hll-button>
          </div>
        </section>
      </div>
    </template>
    <script>
    export default { 
      name: "Login",
      data() { 
        return { 
          loginNumberVal: "",
          loginCodeVal: "",
          rightCode: 1234,
          isRegistered: true, //是否已注册
          isTrue: false,
          codeText: "获取验证码",
          timer: 5,//倒计时时间设置成五秒
        };
      },
      components: { },
      created() { 
        let urlParams = this.$route.query;
        if (this.$route.query.reqParams) { 
          this.reqParams = this.$route.query.reqParams;
        } else { 
          this.reqParams = ``;
        }
      },
      computed: { 
        //登陆按钮是否可点击
        isDisabled() { 
          if (this.loginNumberVal && this.loginCodeVal && this.isTrue) { 
            return false;
          }
          return true;
        },
        isDel() { 
          if (this.loginNumberVal.length) { 
            return true;
          }
          return false;
        },
      },
      methods: { 
        //输入框长度控制
        lenControl() { 
          if (this.loginNumberVal.length > 11) { 
            this.loginNumberVal = this.loginNumberVal.slice(0, 11);
          }
          if (this.loginCodeVal.length > 6) { 
            this.loginCodeVal = this.loginCodeVal.slice(0, 6);
          }
        },
        //号码输入框右边的那个叉
        delBtn() { 
          this.loginNumberVal = "";
        },
        //验证码倒计时
        codeTimer() { 
          let _this = this;
          if (this.timer >= 1) { 
            this.$refs.eleCode.setAttribute("disabled", "true");
            this.$refs.eleCode.setAttribute("value", this.timer + "s 后获取");
            this.$refs.eleCode.style.backgroundColor = "#fce0d2";
            this.timer--;
            setTimeout(function () { 
              _this.codeTimer();
            }, 1000);
          } else { 
            this.$refs.eleCode.setAttribute("value", this.codeText);
            this.$refs.eleCode.removeAttribute("disabled");
            this.$refs.eleCode.style.backgroundColor = "#f16622";
            this.timer = 5;
          }
        },
        //获取验证码
        toGetCode() { 
          let model = /^[1][3,4,5,7,8,9][0-9]{9}$/;
          if (model.test(this.loginNumberVal)) { 
            //格式正确调用接口发送验证码
            alert("正确的号码格式，可以获取验证码");
            this.codeTimer();
            this.isTrue = true;
          } else { 
            alert("手机号格式不正确");
          }
        },
        //登陆
        toLogin() { 
          console.log("登陆,判断手机号是否已经注册、验证码是否正确");
          if (this.isRegistered && this.loginCodeVal == this.rightCode) { 
            alert("可以登录");
            this.$axios
              .post("?_m=loginPaper&_a=loginCommit", { //调取登陆的接口
                loginPhoneNumber: this.loginNumberVal,
                loginPhoneCode: this.loginCodeVal,
              })
              .then((res) => { 
                if (res.ret === 0) { 
                this.$store.commit();//储存要提交的数据
                this.$router.replace({ //登陆成功之后要跳转的页面
                  path: "/exam/test",
                  query: {  is_pass: res.data.is_pass, reqParams: this.reqParams },
                });
                } else { 
                  alert(res.msg || "网络错误");
                }
              })
              .catch(() => { 
                alert("网络错误");
              });
          }
        },
      },
    };
    </script>
    
    <style lang="scss" scoped>
    //使用的是flex布局，进行自适应
    .login-box { 
      display: flex;
      display: -webkit-flex;
    }
    .login-wrap { 
      display: flex;
      display: -webkit-flex;
      flex-direction: column;
      padding: 40px;
      flex: 1;
    }
    .login-icon { 
      margin: 20% auto;
    }
    .icon-top { 
      width: 180px;
      height: 60px;
      flex: 1;
    }
    .input-wrap { 
      flex: 1;
      position: relative;
    }
    .login-input { 
      display: block;
      border-bottom: 1px solid silver;
      height: 60px;
      box-sizing: border-box;
      padding-left: 30px;
      width: 100%;
    }
    .icon-left { 
      position: absolute;
      left: 0;
      top: 24px;
    }
    .icon-right { 
      width: 15px;
      height: 15px;
      position: absolute;
      right: 10px;
      top: 24px;
    }
    .getCode { 
      width: 90px;
      position: absolute;
      right: 5px;
      bottom: 10px;
      color: #fff;
      background-color: #f16622;
      border-radius: 5px;
      padding: 10px;
    }
    .login-btn { 
      margin-top: 10%;
    }
    </style>

[20200907113705756.gif_pic_center]: /images/20221123/0014f758270b4910b602d4bb5b17304d.png