HttpClient PostAsync后置格式无效
我正尝试使用HttpClient的PostAsync登录到网站; 然而，它总是失败，当我使用WireShark跟踪连接时，我发现它错误地发布了数据
码
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("value1", data1),
new KeyValuePair<string, string>("value2", data2),
new KeyValuePair<string, string>("value3", data3)
});
要么
var content = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>("value1", data1),
new KeyValuePair<string, string>("value2", data2),
new KeyValuePair<string, string>("value3", data3)
};
用法
httpClient.PostAsync(postUri, content)
期望
value1=123456&value2=123456&value3=123456
现实
//It adds strange += which makes the post fail...
value1=123456&value2+=123456&value3+=123456
我知道这个作品：
var values = new List<KeyValuePair<string, string>>();
values.Add(new KeyValuePair<string, string>("Item1", "Value1"));
values.Add(new KeyValuePair<string, string>("Item2", "Value2"));
values.Add(new KeyValuePair<string, string>("Item3", "Value3"));
using (var content = new FormUrlEncodedContent(values))
{
client.PostAsync(postUri, content).Result)
}
修剪可能的空白参数。 空格导致+
var content = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>("value1", data1.Trim()),
new KeyValuePair<string, string>("value2", data2.Trim()),
new KeyValuePair<string, string>("value3", data3.Trim())
};
在我看来这更好看：
var variables = new Dictionary<string, string>() {
{ "value1", value1 },
{ "value2", value2 }
};
var content = new FormUrlEncodedContent(variables);
和一个字典可以用于检查加载它时重复的值，除非你需要重复的键...
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