iOS WebView 加载本地资源(图片，文件等)

NSString *path = [[NSBundle mainBundle] pathForResource:@"关于.docx" ofType:nil];
NSURL *url = [NSURL fileURLWithPath:path];
NSLog(@"%@", [self mimeType:url]);

//webview加载本地文件，可以使用加载数据的方式
//第一个诶参数是一个NSData， 本地文件对应的数据
//第二个参数是MIMEType
//第三个参数是编码格式
//相对地址，一般加载本地文件不使用，可以在指定的baseURL中查找相关文件。

//以二进制数据的形式加载沙箱中的文件，
NSData *data = [NSData dataWithContentsOfFile:path];

[self.webView loadData:data MIMEType:@"application/vnd.openxmlformats-officedocument.wordprocessingml.document" textEncodingName:@"UTF-8" baseURL:nil];

NSString *html;

NSString *cachePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0];

NSString *htmlFilePath=[cachePath stringByAppendingPathComponent:@"123.html"];
//    NSString *html=[[NSString alloc]initWithContentsOfFile:htmlFilePath encoding:NSUTF8StringEncoding error:nil];
NSURL *baseURL= [NSURL fileURLWithPath:htmlFilePath];
if ([[NSFileManager defaultManager] fileExistsAtPath:htmlFilePath]) {
NSString *string = [NSString stringWithContentsOfFile:htmlFilePath
encoding:NSUTF8StringEncoding
error:nil];

if (string) {
html = string;
}
}
//    NSString *path = [[NSBundle mainBundle] bundlePath];
//    NSURL *baseURL2 = [NSURL fileURLWithPath:path];
[self.webView loadHTMLString:html baseURL:baseURL];

NSData *imageData=[NSData dataWithContentsOfFile:imagePath];//imagePath :沙盒图片路径
NSString *imageSource = [NSString stringWithFormat:@"data:image/jpg;base64,%@",[imageData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed]];
NSString *strJs=[NSString stringWithFormat:@"document.images[0].src='%@'",imageSource];
[webView evaluateJavaScript:strJs completionHandler:^(id _Nullable response, NSError * _Nullable error) {
NSLog(@"webView response: %@ error: %@", response, error);

}];