Spring, Angular JS and exception handling in the Service layer

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Spring, Angular JS and exception handling in the Service layer

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#1 by (2 votes)

1

I have an application that uses jasper-reports version 6.2.0 with spring-mvc version 3.2.14, java-ee-7 , tomcat 8 and on the front end we use angularjs . The requests rest are made via ajax .

The application is all set to receive objects json in return of the requisitions, since the requests via angularjs are all made via Ajax. In certain functionality of the application we have a "common" request using window.location = url , because we need to return a streaming that is nothing more than a byte array to generate a PDF file.

With this, when there is an error in the back end the answer goes to a blank screen with an object

angularjs json spring-mvc java-ee-7

asked by anonymous 04.12.2015 / 13:44

1 answer

Edit receive caption from multiple labels Message to user after header change

score 2 · Answer 1

Obtain the binary content of the file on success. To do this, use the $http service in conjunction with Blob :

$http({
    url: 'site/endPointQueRetornaConteudoBinario',
    method: "POST",
    data: json, //caso você precise mandar algum conteúdo no POST body
    headers: {
       'Content-type': 'application/json'
    },
    responseType: 'arraybuffer'
}).success(function (data, status, headers, config) {
    // O resultado é válido:
    var blob = new Blob([data], {type: "application/pdf"});
    var objectUrl = URL.createObjectURL(blob);
    window.open(objectUrl);
}).error(function (data, status, headers, config) {
    //Falhou: Faça seu handler aqui.
});

Source.