vue+express生成token方式

目录

• vue+express生成token
• 安装
• 新建token.js文件
• app.js中配置
• 在接口中使用
• 错误
• 总结

npm install express-jwt
npm install jsonwebtoken --save

//用于生成和解析token
var jwt = require('jsonwebtoken');
var signkey = 'zxcvbnmpoiuy';//自定义秘钥

exports.setToken = function (phone, pasaWord) {
    return new Promise((resolve, reject) => {
        const rule = {
            phone: phone,
            pasaWord: pasaWord
        }
        // rule 账号密码 expiresIn 失效时间
        const token = jwt.sign(rule, signkey, { expiresIn: '1h' });
        resolve(token);
    })
}

exports.verToken = function (token) {
    return new Promise((resolve, reject) => {
        var info = jwt.verify(token.split(' ')[1], signkey);
        resolve(info);
    })
}

var vertoken = require('./utils/token');
var expressJWT = require('express-jwt');

// 解析token获取用户信息
app.use(function (req, res, next) {
// authorization 必须为这个  和前端保持一致
  var token = req.headers['authorization'];

  if (token == undefined) {
    return next();
  } else {
    vertoken.verToken(token).then((data) => {
      req.data = data;
      return next();
    }).catch((error) => {
      return next();
    })
  }
});


//验证token
app.use(expressJWT({
  secret: 'zxcvbnmpoiuy', // signkey 自定义秘钥 需跟上方保持一致
  algorithms: ["HS256"]
}).unless({
  path: ['/users/addUsers', "/users/login"]//除了这些地址，其他的URL都需要验证
}));


// 错误处理
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message
  res.locals.error = req.app.get('env') === 'development' ? err : {}
  // render the error page
  res.status(err.status || 500)

  if (err.status == 401) {
    res.send(httpRequest.untoken())
  } else if (err.status == 404) {
    res.send(httpRequest.notFound())
  } else {
    res.send({ code: err.status, data: {}, msg: err.status })
  }
})

// token 验证
var jwt = require('jsonwebtoken');
var Ctoken = require('../utils/token');

router.post('/login', async function (req, res, next) {
  let bady = {
    phone: req.body.phone,
    passWord: req.body.passWord,
  }
  //登录前查询数据库有无此账号
  const data = await User.find().where({
    phone: req.body.phone
  })
  if (data.length == 0) {
    res.send({
      code: 500,
      success: false,
      msg: "该用户没有注册。请先前往注册"
    })
    return
  }
  // 验证密码
  if (data.length != 0 && data[0].passWord !== req.body.passWord) {
    res.send({
      code: 500,
      success: false,
      msg: "密码错误，请重新验证"
    })
    return
  }

  Ctoken.setToken(bady).then((data) => {
    let CObj = {
      code: 200,
      msg: "登录成功",
      token: data
    }
    res.json(CObj);
  });
})