Return 使用 spring MVC 和 angularjs 生成 pdf

Question

我正在尝试做与 Return generated pdf using spring MVC

中相同的事情

但是我正在使用 wkhtmltopdf 所以我稍微修改了上面问题的答案，直到我得到这样的结果。

@RequestMapping(value = "/createhtml2", method = RequestMethod.POST)
public ResponseEntity<byte[]> getPDF() throws IOException {


    try {

        ProcessBuilder pb = new ProcessBuilder("cmd.exe", "/c", " cd C:\Program Files\wkhtmltopdf\bin && wkhtmltopdf.exe "
                + "http://google.com C:\test\Google.pdf");

        pb.start();

    } catch (Exception e) {
        System.out.println(e);
    }


    Path pdfPath = Paths.get("C:\test\Google.pdf");
    byte[] pdf = Files.readAllBytes(pdfPath);


    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.parseMediaType("application/pdf"));
    String filename = "output.pdf";
    headers.setContentDispositionFormData(filename, filename);
    headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
    ResponseEntity<byte[]> response = new ResponseEntity<byte[]>(pdf, headers, HttpStatus.OK);
    return response;
}

不知道上面的请求映射对不对。但是目前前端和后端没有抛出任何错误。但是我现在怎样才能让用户下载这个 pdf 文件呢？

这是控制器

(function () {
    'use strict';

    angular
        .module('app')
        .controller('DemoCtrl', DemoCtrl);

    DemoCtrl.$inject = ['$scope', '$http', '$localStorage' ];
    function DemoCtrl($scope, $http,$localStorage) {


        var vm = this;

        vm.add = add;

        function add() {

            $http.post('/api/createhtml2');

            console.log("Create html page")

        }

    }

})();

html 页面

<div ng-controller="DemoCtrl as vm">

    <form ng-submit="vm.add()">

        <button  type="submit" class="btn btn-danger" >Create Html Page</button>

    </form>

</div>

Answer 1

您可以使用

headers.setContentType(MediaType.parseMediaType("application/pdf;charset=utf-8"));

Return 使用 spring MVC 和 angularjs 生成 pdf

Return generated pdf using spring MVC With angularjs

pdf

spring

spring-mvc

wkhtmltopdf

angularjs