Question

我从节点服务器发送请求到其他服务器，但我需要发送内容类型

应用/ JSON

我如何发送，我正在使用此格式

ViewPager.OnPageChangeListener viewPagerPageChangeListener = new ViewPager.OnPageChangeListener() {

    @Override
    public void onPageSelected(int position) {
        //Do your fragment refreshing here
        mCurrentPage = position;
    }

    @Override
    public void onPageScrolled(int arg0, float arg1, int arg2) {

    }

    @Override
    public void onPageScrollStateChanged(int arg0) {

    }
};

@Override
public void setFragmentsForContents(List<Content> contents) { //bundle data for your different fragments
    if(contents!=null){
        NUM_PAGES = contents.size();
        mContentPager.addOnPageChangeListener(viewPagerPageChangeListener);
        mContentPager.setAdapter(mScreenSlidePagerAdapter);
        mContentPager.setCurrentItem(mCurrentPage);
    }
}

private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
    ScreenSlidePagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        return ContentFragment.newInstance(mContents.get(position).getContent());
    }

    @Override
    public int getCount() {
        return NUM_PAGES;
    }

    @NonNull
    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        return super.instantiateItem(container, position);
    }

    @Override
    public float getPageWidth(int position) {
        return 1.0f;
    }

}

我在尝试这个时遇到错误

request.post('https://server.com/index.php/rest/V1/integration/admin/token',{form:postData},function (error, response, body) {
    console.log('error:', error); // Print the error if one occurred
    console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
    console.log('body:', body); // Print the HTML for the Google homepage.
    res.json({
        'error': error,
        'statusCode': response && response.statusCode,
        'body': body
    })
});

“message”：“服务器无法理解Content-Type HTTP标头媒体键入application / x-www-form-urlencoded“

Answer 1

请将密钥名称form更改为json。

    request.post('https://server.com/index.php/rest/V1/integration/admin/token', {
    json: postData
}, function(error, response, body) {
    console.log('error:', error); // Print the error if one occurred
    console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
    console.log('body:', body); // Print the HTML for the Google homepage.
    res.json({
        'error': error,
        'statusCode': response && response.statusCode,
        'body': body
    })
});

Answer 2

根据the docs，您需要将json:true的{{1}}设置为添加到标题

application/json

Answer 3

见the documentation。您只需要在选项对象中包含headers属性的值：

request.post(
    'https://server.com/index.php/rest/V1/integration/admin/token',
    {
        form: postData, /* Ensure this is a string of JSON! */
        headers:{ 
            "Content-Type": "application/json"
        }
    },
    your_callback_function
);

Answer 4

修正了这个问题，

request.post({
    url: url,
    method: "POST",
    headers: {
        "content-type": "application/json",
    },
    json: postData
},function (error, response, body) {
    console.log('error:', error); // Print the error if one occurred
    console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
    console.log('body:', body); // Print the HTML for the Google homepage.
    res.json({
        'error': error,
        'statusCode': response && response.statusCode,
        'body': body
    })
});

如何在“请求”npm包中设置内容类型

4 个答案: