如何获取JSON中的键值? [英] How to get the value of a key in a JSON?

问题描述

我有一个JSON正文.我想获取"access_token"的值.我想在bash中使用grep.我使用的grep无法正常工作.

I have a JSON body. I would like to obtain the value of "access_token". I would like to use grep in bash. The grep I used doesn't not work.

我尝试了以下操作，但结果空白.

I tried the following but it provides me a blank result.

HTTP_BODY=$(echo $HTTP_RESPONSE | grep ^"access_token":" ","experies_in$ )

我只想获取access_token值，即:

I want only to obtain the access_token value, i.e.:

eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ

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输入:

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Input:

HTTP_RESPONSE="{"access_token":"eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ","expires_in":360,"token_type":"Bearer"}"

预期输出:

eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ

推荐答案

jq -r '.access_token' file

输出:

eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ

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请参阅:man jq

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