Angular App中proxy.conf.json的CORS问题

Question

我在Stack Overflow上也看到过其他类似的问题，但到目前为止，还没有什么能帮到我。

我有一个有棱角的应用程序http://localhost:4200.我在http://localhost:8080/myApp/

我试图设置到达后端从我的前端与以下调用：

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);
}

API_URLhttp://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"}
    }
}

我的包裹。json具有以下特点：

"start": "ng serve --proxy-conf proxy.conf.json",

我在尝试运行应用程序时收到的错误是CORS one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.

我将感谢任何帮助。谢谢！

Answer 1

问题似乎是选项应该是"--proxy-config"，而不是"start"中的"--proxy-conf"："ng service--proxy-confproxy.conf.json"

Answer 2

在应用程序的根文件package.json并行文件，创建一个新文件
proxy.config.json

{
"/api*": {
    "target":"http://localhost:8080",
    "secure":false,
    "logLevel":"debug"
    }
}  

现在在你的包裹里。json在脚本中：{}，添加以下文件名为proxy的flax。配置。json启动“

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

}

希望这对你有用。