WKWebView POST请求

转载自:https://www.jianshu.com/p/866847bd139a

一、先定义一个JS代码的宏

#define POST_JS @"function my_post(path, params) {
var method = "POST";
var form = document.createElement("form");
form.setAttribute("method", method);
form.setAttribute("action", path);
for(var key in params){
    if (params.hasOwnProperty(key)) {
        var hiddenFild = document.createElement("input");
        hiddenFild.setAttribute("type", "hidden");
        hiddenFild.setAttribute("name", key);
        hiddenFild.setAttribute("value", params[key]);
    }
    form.appendChild(hiddenFild);
}
document.body.appendChild(form);
form.submit();
}"

二、在viewDidLoad里这样写

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    WKWebView * myWeb = [[WKWebView alloc] initWithFrame:self.view.frame ];
    self.myWeb = myWeb;
    [self.view addSubview:myWeb];
    
    // 要传递的参数，（在开发中可以字典转成json字符串即可）
    NSString * dataStr = @"{"token":"cac6af340960485aa334416c8a34ddbf"}";
    // 发送的地址
    NSString * url = @"http://192.168.1.36:8000/show_meta/";
    // 最终要执行的JS代码
    NSString * js = [NSString stringWithFormat:@"%@my_post("%@", %@)",POST_JS,url,dataStr];
    // 执行JS代码
    [myWeb evaluateJavaScript:js completionHandler:nil];
}