当我尝试设置标题时，Volley抛出错误

如何解决当我尝试设置标题时，Volley抛出错误

在向Unexpected char 0x0a at 18 in header value字符串请求中添加自定义标头时，我收到一条错误消息Volley。

这是我的代码。

stringRequest = new StringRequest(Request.Method.GET,URL,string -> {
            try {
                JSONObject jsonObject = new JSONObject(string);
                Log.d("TAG",jsonObject.toString());
            } catch (Exception e) {

            }
        },error -> {

        }){
            @Override
            public Map<String,String> getHeaders() {
                Map<String,String>  params = new HashMap<>();
                params.put("MIME Type","application/x-www-form-urlencoded; charset=UTF-8");
                params.put("compiler","c");
                params.put("code",code);
                params.put("input","");
                return params;
            }
        };

我得到的错误。

2020-10-07 10:52:06.869 32119-32232/com.my.app E/Volley: [2415] NetworkDispatcher.processRequest: Unhandled exception java.lang.IllegalArgumentException: Unexpected char 0x0a at 18 in header value: #include <stdio.h>
    
    int main()
    {
int foo = 0;
    
printf("Hello world");
    
return foo;
    }
    java.lang.IllegalArgumentException: Unexpected char 0x0a at 18 in header value: #include <stdio.h>
    
    int main()
    {
int foo = 0;
    
printf("Hello world");
    
return foo;
    }
        at com.android.okhttp.Headers$Builder.checkNameAndValue(Headers.java:319)
        at com.android.okhttp.Headers$Builder.add(Headers.java:250)
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.addRequestProperty(HttpURLConnectionImpl.java:600)
        at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.addRequestProperty(DelegatingHttpsURLConnection.java:187)
        at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.addRequestProperty(HttpsURLConnectionImpl.java:30)
        at com.android.volley.toolbox.HurlStack.executeRequest(HurlStack.java:95)
        at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:131)
        at com.android.volley.NetworkDispatcher.processRequest(NetworkDispatcher.java:120)
        at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:87)

解决方法

0x0A是\ n换行符。确保标题中没有“ \ n”。

我认为您的标题中有一行！ 您可以随身发送代码！

,

从this answer解决了它

•步骤1：删除了params.put("MIME Type","application/x-www-form-urlencoded; charset=UTF-8");

•步骤2：将params.put("code",code);替换为params.put("code",Base64.encodeToString(code.getBytes(),Base64.NO_WRAP));

更新

•我已从代码中删除了步骤2，因为它导致了我的问题。所以现在看起来像params.put("code",code);