<script>

var script = document.createElement('script');

script.type = 'text/javascript';

// 傳參一個(gè)回調(diào)函數(shù)名給后端，方便后端返回時(shí)執(zhí)行這個(gè)在前端定義的回調(diào)函數(shù)

script.src = 'http://www.domain2.com:8080/login?user=admin&callback=handleCallback';

document.head.appendChild(script);

// 回調(diào)執(zhí)行函數(shù)

function handleCallback(res) {

alert(JSON.stringify(res));

}

</script>

handleCallback({"status": true, "user": "admin"})

$.ajax({

url: 'http://www.domain2.com:8080/login',

type: 'get',

dataType: 'jsonp', // 請(qǐng)求方式為jsonp

jsonpCallback: "handleCallback", // 自定義回調(diào)函數(shù)名

data: {}

});

var querystring = require('querystring');

var http = require('http');

var server = http.createServer();

server.on('request', function(req, res) {

var params = qs.parse(req.url.split('?')[1]);

var fn = params.callback;

// jsonp返回設(shè)置

res.writeHead(200, { 'Content-Type': 'text/javascript' });

res.write(fn + '(' + JSON.stringify(params) + ')');

res.end();

});

server.listen('8080');

console.log('Server is running at port 8080...');

app.UseOcelot((ocelotBuilder, pipelineConfiguration) =>

{

// This is registered to catch any global exceptions that are not handled

// It also sets the Request Id if anything is set globally

ocelotBuilder.UseExceptionHandlerMiddleware();

// Allow the user to respond with absolutely anything they want.

if (pipelineConfiguration.PreErrorResponderMiddleware != null)

{

ocelotBuilder.Use(pipelineConfiguration.PreErrorResponderMiddleware);

}

// This is registered first so it can catch any errors and issue an appropriate response

ocelotBuilder.UseResponderMiddleware();

ocelotBuilder.UseDownstreamRouteFinderMiddleware();

ocelotBuilder.UseDownstreamRequestInitialiser();

ocelotBuilder.UseRequestIdMiddleware();

ocelotBuilder.UseMiddleware<ClaimsToHeadersMiddleware>();

ocelotBuilder.UseLoadBalancingMiddleware();

ocelotBuilder.UseDownstreamUrlCreatorMiddleware();

ocelotBuilder.UseOutputCacheMiddleware();

ocelotBuilder.UseMiddleware<HttpRequesterMiddleware>();

// cors headers

ocelotBuilder.Use(async (context, next) =>

{

if (!context.DownstreamResponse.Headers.Exists(h => h.Key == HeaderNames.AccessControlAllowOrigin))

{

var allowedOrigins = Configuration.GetAppSetting("AllowedOrigins").SplitArray<string>();

context.DownstreamResponse.Headers.Add(new Header(HeaderNames.AccessControlAllowOrigin, allowedOrigins.Length == 0 ? new[] { "*" } : allowedOrigins));

context.DownstreamResponse.Headers.Add(new Header(HeaderNames.AccessControlAllowHeaders, new[] { "*" }));

context.DownstreamResponse.Headers.Add(new Header(HeaderNames.AccessControlRequestMethod, new[] { "*" }));

}

await next();

});

})

.Wait();

ocelotBuilder.Use(async (context, next) =>

{

if (!context.DownstreamResponse.Headers.Exists(h => h.Key == HeaderNames.AccessControlAllowOrigin))

{

var allowedOrigins = Configuration.GetAppSetting("AllowedOrigins").SplitArray<string>();

context.DownstreamResponse.Headers.Add(new Header(HeaderNames.AccessControlAllowOrigin, allowedOrigins.Length == 0 ? new[] { "*" } : allowedOrigins));

context.DownstreamResponse.Headers.Add(new Header(HeaderNames.AccessControlAllowHeaders, new[] { "*" }));

context.DownstreamResponse.Headers.Add(new Header(HeaderNames.AccessControlRequestMethod, new[] { "*" }));

}

await next();

});