angular4 http post 将 Base64 编码传回后台时的部分编码丢失答案

【问题标题】：Partial encoding loss when angular4 http post passes Base64 encoding back to the backgroundangular4 http post 将 Base64 编码传回后台时的部分编码丢失
【发布时间】：2018-02-23 01:52:46
【问题描述】：

我使用http post提交base64编码，但部分编码丢失。我使用genymotion测试功能。控制台收到的base64代码如下。 / Aea8OZVZvj7xayB57xBx472efvXIP9X8iain / Q k1a7 / ANX8llGXDJ wSfsq / sffHHQ9ZuPgZ4qstH1YW0MqS6Rr2va / b6cfPJzdeGfEV0L7TCQMEMNPG24bA3gOPzc MnwR8d / AnxTJ4d8WWsZt7lxNpGu2y27WGvwKITcahaXMF3eG3tlJwt0flvARg5 2iHzrw34i8UeCvEFl4g8K61faLremTC50 / VbC5W0vLY vXB49 D78V 2fhXU9F / BQ / ZjvY9btbSLxlpshstVitWli8rxdpywXNnPpwguQTpOveRb3IXI一个1HcQdGFTryOpBqXVRvva7Ti7tWaS12cprRtzkexwxLw7 lVRzLgnEcC8CeGXjHHIo57wJn / AaeR8A8ef2E2pcP59w / dJSspcmfXzjP5S5 IZNLJ58PZl Gu11GPNwP uYPdvc / wCvPFOBVFJLceuD6sOmCe38 RmnNHNbz3VpdQzQSw3Atp4bj / lhy3r93jPvnoSd1RbfLjXnOzHP1Z cfjz9RwTmvQoO7nqne3RL / n5ukvJd003u1M / iGdKtRrSpVbWtppZ7yTvr5aadXo2myaiiiugAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKAP1B / 4JufDnT5H8efF3WLWOSTTJh4P0Se4P / IN / 4l51LxLqHOMf8Sz zQMknnXDk4JPxh 0R8bdc OfxH1rXbq9um8M2N7cWPgzShH 403SzAPsmbUDcdU1wj 2fEIJIBbjO4sf0Q / 4J4yW R / s9fFHwlb3WzVP Ew1n7R / 07f8JH4Q8L6bpmodeQf7M1HA7Z4JJNfkJqOk6noupaho q2slpqOnXk1neQ3Eg 2QXFpGJ7uwypIB6ZB5zw2GBA8f vxtf8Ar776n9e IGYZrk30PPo 5Nk1sryPinP / ABAz7j5Xds Z /我I2sifEC5v hHHbZLJZJyvkt3n75MyY4xt TG / 3h1z1 XPXnp3r9G / CE / xs1vRPHp CutapNdeHfFdte3PhuGaf8A5AniXTbA6iP7MG7jStd0sahx / wBB8EnByT cyqAGXOQudoAPz43Z59cnv7DPBz9N / SV HtR139pfwCbGKbydGubvxDfTw / 8ALrZ6dp q9s87tUTTdHPXP9oDB Uk9ym7P34 / ZWkWm7uSV / dbut7X6tKSer / EfAjM8 yDxm8J8w4fT / TP / Xvh / ZV / AJnvETyF5C9ea3ECj / YO7tFXu9Dov21 / hinw3 OesX2noiaN4ytrbXdDtFINnaiGxddRgGWZsLd2twq5UIFCrGxwwX7d8QTz d / CatnJoBEEk / w88GRMYVBAl8W I9NPiDhhg5Oo6jgHIyDkHGa厘泊CkGtaZffFrwrpFrL515oPhKJNUODm2n1nWtS1K35IK5GlwWh4JYZIKgZM /0吨zdJYfHf9iXUfhtLLHNqGh2mp Eru0d8Spf6brJ8SeD4RhsjSzB9k7g5sNZORgk8VC6oVrrS2LVtlyp1ElFNW Gzt15k5NKPvf3Fw1lGSUPpi / Sk4E4Wzl5XmPHPhN4lZBw / G1L / r5nmV5Dnuerl7ZBmSzzPkrpZG8l1TTPxgAwm0qCP97j7zH19SPx7gim7VVXYcDjnk55ZemcjBC 5yeeCat6np2oaJf3enalbSWt / ps1xaXljcDN7bT2m4XlhwSDx1wSQSF4O7NU7QWB 78u4c9idvQ569x6nJPOelbb3Urfm76N79r36NN3uv80a2Fx2X43McBj8AspzHKUrb / zVdk91JWtb4nfRMRkLlgxxj7nvyc9 MALn6DqSa / UR / gmPfXwvvjBpZE39lz2Xgy Xt5N6NR8T6aenPBAI5 / 5cepANflkBEocN85GMfeGeWz0JHQjqfXkkmv2c / YA8ET APgv4u J3iRZLJfF t4NQs96GTPhjwlBq1uLm2HP2gk6l4iGfvZIGCF3Nsv3XW8Wmr2tbV6p3e7te升URT / UH0JslzTMPpIcEYnAtpZUs / WA z6W6 / sB5BxHkLcneyUs7z7Isht3zmCTS5j8z / wBpWzhsP2gfi1ZWi / 6LYeK9VtoUIPA8iPA5OeFwOpHB4ALZ8WVlQN5a5U4xzjoWH8XPXP8A9Yc10 / jnxTd OvGXijxhft5Fz4i1u 1aUbR / qnur6T7ygf8AP2Dz8x4DMzBmPMRsAzfN3 / enn95ywH0 / DqBzkissLFRw9GlU10j3tpzJtWe 1ktG3BWbba / BfEDOcJxBx / 4icSZV / wAi7iHjrPc9yBq1nkOe8QcRZ6rOzfLeLb3WsU9Eyeiiiu0 WCiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooA lP2Sfj fgL8RbvUdWM0 / g7xVDZaP4st4cf6KMsNM8QYyM / 2Hg5Hbw / qGtAliQa / QD45 / sheEP2hJR8X / g94q0Sx1DxPEL / VHiJ1bw54vhAKJfaZeafdWlvpmpoBhVBXO47mICV MUQbB2r 7PUcdi / I bJ5GfxYZyCa9J Hnxa KHwslmk8A OdY8PJKPNubDTphPpd0C1zj 09O1I / 2TxtyM5yAASMAnl5nqudb6NLVL3kre49dE9 / 5NrNv hfCXx0yfhbhHMfCrxU4G / 4iX4W5rnyz7 wVfIuIMhz 7vxDkGf3td25pcPOOTaWtxDkzjxGsy KDG / YB / aJvda / s7UtL0TSdK88bteuvEOkTKhAkIAttOu9Z1YgtgEnTshSHwW Q / d3gTwH8H / ANhn4a614o8Xa1baj4u1O0ht7 / VES5h1TWLjzzBp3h / WTPP 1lNJBmgJxwST4k8Truwp / OU4 / BK / aevLJ7FfiJa2e3 / j6nsfCng60vBln24 / 4lGRnGcDJHGSAOfmjxN4u8W NtWn1 / xh4k1rxHqsv / L / AK5e6heXgyX9Tzyff7x4wDnmSĴ2d9Fq1 / e974ndvra9vdZ lZR42 / R28H / AO0OIvAnw34 ZTJ / AP4Xv7Bz / wAWnw8v9QrOd / 7AyDIeIc Sk9OmTZ le3EDSlfb JXxA1b4p PPE / J / AFyV49R8Q3cF9cW0Ugms7WDlbWxBAAI06z / S / SACCVBCl2ZTIfUv2ZP2g9T / AGfvHbaz5d1qfhTXxZWHijRIT / x9WQJ / s3UNNBP / ACFdC2455 YYBNfOyE5UKf8AcG3Hd8 / oCR9cckU2NMmQMPm UAH3Jz3x0HHPTHXPPVTtCk3d2WyTd7cyj1395X66N3vJXP5QwXGXFmD4y / 4iBheIP MuWfLPln61l / RBF 3Y8QJt3t0cu7i21zcy / av4pfs2fCL9q / SJPil8I / Fej2Ov6isRu9atYrmXRL 4Mzeedd0M3drdeGvFTW3Jt7rlvl / 4p61AJr4c1H9gr9pKw1J7TS / Cuma1Yr / q9Rh8R HbWBzhiQYNR8Q2Gr43dD9sztwTgsRXzR4M8eeOvh / qsmqeBvFGt Gb3jz5tJv / ALILnl8f2ppxP / EyGfmHPcAkg19G2f7dv7T9tbRW7 NdLuxDjfdXHhPw8Lzqw4H9k8dh05IbkgMa5KUZOTne2uu1m25aq7sno9E7Xtu0pP8AqTMvGX6N3itUlnPjX4WZ / wAKcf6vPc 8JP8AV1xz58z97P8AIOIOIU H72vaP9scQPX / AIyHmTk / pj4P / wDBPWXTr608RfHDXdPudN06I37 FtMIIaczXAxrviW2u2 / s3SVBDB9Oxk4U IcBmbG / BJ / as8Ma14fuPgj8I9TgudE3Wdj4w8Q6JIYdLEOnXDHTPDGhefuN1pT5PQhtxJY / L / pHxT4 /aC N/xRtZNN8b/EDWtU0ucnztLtvsGm6Xdclj/aWl6a iaRqfA PPPBbsM140q4Tae2Mn / nnksRxk53AdOwzkgnNdkIQpp6q7vq 3Nv8TXSz3eq3s4nj8W / SD4MyHg3iDws j1wK CMi4qSXH3EGf2zzj / PrNJR0VuH7WzrSOe507Z3bh1ZNfiS9iiiiug / lMKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooA //ž P>

这是我的代码。公共 postList(url,params) {

    // console.log(params);

    return new Promise((resolve,reject)=>{

    this.http.post(url,params)

    .map(res=>res.json())

    .subscribe(data=>{

        resolve(data);

    },err=>{

        reject(err);

        })

    })

}

【问题讨论】：

标签： angular http base64 http-post

【解决方案1】：

为什么要使用 res.json() 流来编码 base64 值。 Res.json 仅在 API 调用返回 JSON 值时使用，只返回 res 而不是 res.json()

【讨论】：

我的map的用法是把后台参数传成json格式。而我传给后台的param是string类型的。