非常诡异的问题:httpclient 必须显式设置 headers,无论传入常量变量都报错 - V2EX
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VKRUSSIA
V2EX    Java

非常诡异的问题:httpclient 必须显式设置 headers,无论传入常量变量都报错

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  •   VKRUSSIA Sep 7, 2021 1760 views
    This topic created in 1692 days ago, the information mentioned may be changed or developed.

    在我封装的类里调用某涯网的 api 发现非常诡异的现象:

    httpclient(无论任何 http 库)必须显式设置 headers 否则无论传入常量变量都报错

    就是必须以 HttpRequest.get("someurl").headers(new HashMap<String,String>({{put('','');}}).body;的形式

    如果是动态传入常量或变量

    HashMap<String,String> h=new HashMap<String,String>({{ put('',''); }} HttpRequest.get("someurl").headers(h).body;

    死活回显

    {"code":"0","success":0,"message":"未知客户端请求","data":{}}

    正常应该是

    {"code":"1","success":1,"message":"成功","data":{}}

    而我在 main 方法直接用同一 http 库动态传入 headers 调用接口却不会有这个错误.

    这是什么情况?

    6 replies    2021-12-11 17:16:56 +08:00
    ch2
        1
    ch2  
       Sep 7, 2021
    抓 http 报文看一下就知道了
    sutra
        2
    sutra  
       Sep 7, 2021
    要设置 User-Agent 吧?
    VKRUSSIA
        3
    VKRUSSIA  
    OP
       Sep 7, 2021
    @sutra 这里只是演示所以是空的,经过反复确认 headers 是一模一样可就是不行
    sutra
        4
    sutra  
       Sep 7, 2021
    如果仔细看你给的代码,我都没看出来它俩有什么区别。
    kingfalse
        5
    kingfalse  
       Sep 7, 2021 via Android
    jsoup.connect()方法了解一下,hc 这玩意太重了
    VKRUSSIA
        6
    VKRUSSIA  
    OP
       Dec 11, 2021
    粗心了。原来是 md5 大小写的原因,此贴终结
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