javascript 字符串化缓冲区中的奇怪字符
Weird charaters in a stringified buffer in javascript
我有一个特定的上下文，其中一个数据经过大量转换才能跨网络传输。最后，当我试图取回这些数据时，我在字符串的开头有不需要的字符。
首先，我从数据库中获取数据，它 returns 以字节 (<Array.<byte>>) 的形式提供给我，.toString() 完全可读。结果是：
{\"company\":\"xxx\",\"email\":\"xxx\",\"firstName\":\"xxx\",\"lastName\":\"xxx\",\"providerId\":\"xxx\",\"role\":\"xxx\",\"status\":\"xxx\"}
这些数据被传递给另一个 "environment"，其功能（不是我开发的，我无法更改）returns "I don't really know what format it is" 中的数据。
我可以用下面的代码解码它：
jsonIdentity = JSON.stringify(bufferIdentity);
Buffer.from(JSON.parse(jsonIdentity).payload.buffer.data).toString('utf-8')
但是，在字符串的开头，我有以下内容：
"\u0008\u0006\u001a�\u0001\u0008�\u0001\u001a{{\"company\":\"xxx\",\"email\":\"xxx\",\"firstName\":\"xxx\",\"lastName\":\"xxx\",\"providerId\":\"xxx\",\"role\":\"xxx\",\"status\":\"xxx\"}
在我的日志中也是这样表示的：
��{{"company":"xxx","email":"xxx","firstName":"xxx","lastName":"xxx","providerId":"xxx","role":"xxx","status":"xxx"
如何删除 it/prevent 它以进入我的结果？它阻止我使用 JSON.
更新：这是我得到的缓冲区：
{"status":200,"message":"","payload":{"buffer":{"type":"Buffer","data":[8,6,26,128,1,8,200,1,26,123,123,34,99,111,109,112,97,110,121,34,58,34,105,98,109,34,44,34,101,109,97,105,108,34,58,34,102,64,105,98,109,46,99,111,109,34,44,34,102,105,114,115,116,78,97,109,101,34,58,34,102,108,111,114,105,97,110,34,44,34,108,97,115,116,78,97,109,101,34,58,34,99,97,115,116,34,44,34,112,114,111,118,105,100,101,114,73,100,34,58,34,102,99,34,44,34,114,111,108,101,34,58,34,117,115,101,114,34,44,34,115,116,97,116,117,115,34,58,34,111,107,34,125,34,64,98,54,57,51,50,51,53,100,49,52,97,49,98,102,57,57,56,100,50,99,97,102,53,53,52,52,100,97,49,50,50,51,55,101,97,55,99,50,56,55,50,49,56,97,101,55,51,100,55,97,50,53,101,52,55,48,48,51,56,52,100,54,53,54,58,14,100,101,102,97,117,108,116,99,104,97,110,110,101,108]},"offset":10,"markedOffset":-1,"limit":133,"littleEndian":true,"noAssert":false}}
你能试试这个吗：
const yourString = JSON.parse(jsonIdentity).payload.buffer.data;
console.log(Buffer.from(yourString, 'base64').toString('utf-8'))
一个丑陋的解决方案就是 trim 或替换结果中的字符
问题已解决。 Jira 上提供了解决方案：https://jira.hyperledger.org/browse/FAB-14785?focusedCommentId=58680&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-58680
我有一个特定的上下文，其中一个数据经过大量转换才能跨网络传输。最后，当我试图取回这些数据时，我在字符串的开头有不需要的字符。
首先，我从数据库中获取数据，它 returns 以字节 (<Array.<byte>>) 的形式提供给我，.toString() 完全可读。结果是：
{\"company\":\"xxx\",\"email\":\"xxx\",\"firstName\":\"xxx\",\"lastName\":\"xxx\",\"providerId\":\"xxx\",\"role\":\"xxx\",\"status\":\"xxx\"}
这些数据被传递给另一个 "environment"，其功能（不是我开发的，我无法更改）returns "I don't really know what format it is" 中的数据。
我可以用下面的代码解码它：
jsonIdentity = JSON.stringify(bufferIdentity);
Buffer.from(JSON.parse(jsonIdentity).payload.buffer.data).toString('utf-8')
但是，在字符串的开头，我有以下内容：
"\u0008\u0006\u001a�\u0001\u0008�\u0001\u001a{{\"company\":\"xxx\",\"email\":\"xxx\",\"firstName\":\"xxx\",\"lastName\":\"xxx\",\"providerId\":\"xxx\",\"role\":\"xxx\",\"status\":\"xxx\"}
在我的日志中也是这样表示的：
��{{"company":"xxx","email":"xxx","firstName":"xxx","lastName":"xxx","providerId":"xxx","role":"xxx","status":"xxx"
如何删除 it/prevent 它以进入我的结果？它阻止我使用 JSON.
更新：这是我得到的缓冲区：
{"status":200,"message":"","payload":{"buffer":{"type":"Buffer","data":[8,6,26,128,1,8,200,1,26,123,123,34,99,111,109,112,97,110,121,34,58,34,105,98,109,34,44,34,101,109,97,105,108,34,58,34,102,64,105,98,109,46,99,111,109,34,44,34,102,105,114,115,116,78,97,109,101,34,58,34,102,108,111,114,105,97,110,34,44,34,108,97,115,116,78,97,109,101,34,58,34,99,97,115,116,34,44,34,112,114,111,118,105,100,101,114,73,100,34,58,34,102,99,34,44,34,114,111,108,101,34,58,34,117,115,101,114,34,44,34,115,116,97,116,117,115,34,58,34,111,107,34,125,34,64,98,54,57,51,50,51,53,100,49,52,97,49,98,102,57,57,56,100,50,99,97,102,53,53,52,52,100,97,49,50,50,51,55,101,97,55,99,50,56,55,50,49,56,97,101,55,51,100,55,97,50,53,101,52,55,48,48,51,56,52,100,54,53,54,58,14,100,101,102,97,117,108,116,99,104,97,110,110,101,108]},"offset":10,"markedOffset":-1,"limit":133,"littleEndian":true,"noAssert":false}}
你能试试这个吗：
const yourString = JSON.parse(jsonIdentity).payload.buffer.data;
console.log(Buffer.from(yourString, 'base64').toString('utf-8'))
一个丑陋的解决方案就是 trim 或替换结果中的字符
问题已解决。 Jira 上提供了解决方案：https://jira.hyperledger.org/browse/FAB-14785?focusedCommentId=58680&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-58680