舉個例子:

//js的標簽內(nèi)容

<meta name="attach_title" content="">

<meta name="attach_url" content="">

//UIWebView獲取方法

? ? NSString *js = @"document.getElementsByName(\"attach_title\")[0].content";

? ? NSString *attach_title = [self.webView stringByEvaluatingJavaScriptFromString:js];

? ? js = @"document.getElementsByName(\"attach_url\")[0].content";

? ? NSString *attach_url = [self.webView stringByEvaluatingJavaScriptFromString:js];

//WKWebView的獲取方法

- (void)getWKwebViewCenterDic {

? ? [self.wkWebView evaluateJavaScript:@"document.getElementsByName(\"attach_title\")[0].content" completionHandler:^(id result, NSError * _Nullable error) {

? ? ? ? NSString *attach_title = @"";

? ? ? ? if ([result isKindOfClass:[NSString class]]) {

? ? ? ? ? ? attach_title = result;

? ? ? ? }

? ? }];

? ? [self.wkWebView evaluateJavaScript:@"document.getElementsByName(\"attach_url\")[0].content" completionHandler:^(id result, NSError * _Nullable error) {

? ? ? ? NSString *attach_url = @"";

? ? ? ? if ([result isKindOfClass:[NSString class]]) {

? ? ? ? ? ? attach_url = result;

? ? ? ? }

? ? }];

}

//獲取所有的html

NSString *allHtml = @"document.documentElement.innerHTML";

//獲取網(wǎng)頁title

NSString *htmlTitle = @"document.title";