webView設置請求頭

_webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 64, Width, Height-64)];
self.automaticallyAdjustsScrollViewInsets = NO;
_webView.scrollView.showsVerticalScrollIndicator = NO;
_webView.delegate = self;
[self.view addSubview:_webView];

//創建請求對象
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:self.urlStr]];//默認爲get請求
NSLog(@"self.urlStr:%@",self.urlStr);
request.timeoutInterval=5.0;//設置請求超時爲5秒
request.HTTPMethod=@"GET";//設置請求方法

//設置請求體
//把拼接後的字符串轉換爲data，設置請求體
//request.HTTPBody=[param dataUsingEncoding:NSUTF8StringEncoding];
NSString * sessionID = [GJTool objectForKey:@"session_id"];
NSLog(@"sessionID:%@",sessionID);
// 創建POST請求參數
// 設置請求頭
//客戶端類型，只能寫英文
[request setValue:sessionID forHTTPHeaderField:@"CheHuangAuto"];

[_webView loadRequest:request];