Angular 应用程序中 proxy.conf.json 的 CORS 问题

Run*_*525 6 proxy angular

我在 Stack Overflow 上看到过其他类似的问题,但到目前为止还没有对我有任何帮助。

我有一个服务于http://localhost:4200 的角度应用程序。我有一个后端http://localhost:8080/myApp/

我正在尝试通过以下调用设置从前端到达后端:

public getPeople(): Observable<PeopleModel[]> {
    return this.http
        .post(API_URL + '/getPeopleDetails', {})
        .map(response => {
            const people = response.json();
            console.log(people);
            return partners.map((people) => new PeopleModel(people));
        })
        .catch(this.handleError);
}
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API_URL 设置为http://localhost:8080/myApp

我的代理配置如下所示:

{
    "/myApp/*": {
        "target": "http://localhost:8080/myApp",
        "secure": false,
        "changeOrigin": true,
        "logLevel": "debug",
        "pathRewrite" : {"^/myApp" : "http://localhost:8080/myApp"}
    }
}
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我的 package.json 有以下内容:

"start": "ng serve --proxy-conf proxy.conf.json",
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我在尝试运行该应用程序时收到的错误是 CORS 错误和 403。

Failed to load http://localhost:8080/myApp/getPeopleDetails: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:4200' is therefore not allowed access. The response had HTTP status code 403.
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我将不胜感激任何帮助。谢谢!

Adi*_*kla 3

在与 package.json 文件平行的应用程序根目录中,创建一个新文件
proxy.config.json

{
"/api*": {
    "target":"http://localhost:8080",
    "secure":false,
    "logLevel":"debug"
    }
}  
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现在,在脚本中的package.json中:{},添加以下文件名为proxy.config.json 的flax以启动”

{
"name":"xyz",
"version":"1.0.0",
"license":"MIT",
"angular-cli": {},
"scripts": {
    "start":"ng serve --proxy-config proxy.config.json",
    "test":"ng test"
}
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}

希望这对你有用。