Question

使用RestTemplate发送POST请求时，我一直收到400 BAD请求。我正在发送一个对象列表，为此我创建了一个类AllCars女巫作为我的班级汽车的字段列表：

public class AllCars {

    private List<Cars> listcars;

    public AllCars() {
    }

    public AllCars(List<Cars> listcars) {
        this.listcars = listcars;
    }

    public List<Cars> getListcars() {
        return listcars;
    }

    public void setListcars(List<Cars> listcars) {
        this.listcars = listcars;
    }
}

汽车类

public class Cars {


    private Long id;
    private long speed;
    private String color;

    public Cars() {
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
         this.id = id;
    }

    public long getSpeed() {
        return speed;
    }

    public void setSpeed(long speed) {
        this.speed = speed;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

}

这是我的客户端代码：

private class SendData extends AsyncTask<AllCars, Object, AllCars> {

    ProgressDialog progressDialog;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressDialog = ProgressDialog.show(getContext(), "Downloading", "Downloading..Please Wait", true);

    }

    @Override
    protected AllCars doInBackground(AllCars... params) {
        try {

        // urls
            final String urlCars = "http://myurl/addCars";
             publishProgress(0);

             RestTemplate restTemplate = new RestTemplate();

            // Add the Jackson and String message converters
            restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
            restTemplate.getMessageConverters().add(new StringHttpMessageConverter());
            AllCars result = restTemplate.postForObject(urlAllCars, params[0], AllCars.class);

              return result;
        } catch (Exception e) {
            Log.e("mainactivity", e.getMessage(), e);
        }

        return null;
    }


    @Override
    protected void onPostExecute(AllCars ob) {


            if(ob instanceof  AllCars)
        Log.d("AllCars", "success " );

        else
            Log.d("No Result ", "");




        progressDialog.cancel();
    }

}

这是我的服务器端代码：

@Requesrmaping (vlaue = "/addCars", method=RequestMethod.POST)

    public ResponseEntity<AllCars>addCars(@RequestBody AllCars allcars){
    List<Cars> listcar= allcars.getListcars();
    return new ResponsEntity<AllCars>(allcars,HttpStatus.ok)
}

这个代码适用于listcare有一个对象但是当它有多个对象时它没有工作可以帮助我

将HUGE JSON数据发送到服务器抛出postforobject方法

0 个答案: