Java Spring RESTful web服务POST对象

Spring和Gson在将对象发布到服务器时遇到问题。我得到的结果是空的，即使它包含数据

此代码段来自Restful web服务：

    @RequestMapping("/summe")
    public @ResponseBody String summe(ArrayList<ServiceSettingsListItem> list) {
    return "Greeting.summe() = <" + list + ">" + list.size();   
}

---

我希望得到两个结果，但结果显示为0。

而不是发布

ServiceSettings

对象，您需要发布

项目

元素，因为控制器希望有效负载是一个列表。请尝试以下操作：

ServiceSettings serviceSettings = gson.fromJson(fileContent, ServiceSettings.class);
String baseUrl = serviceSettings.getUrl();
RestTemplate restTemplate = new RestTemplate();
String result = restTemplate.postForObject(baseUrl, serviceSettings.getItems(), String.class); //Assuming there is a getter for items

{"url":"http://localhost:8080/summe",
"test":123,
"items":[
 {"name":"name1","value":5},
 {"name":"name1","value":6}
 ]
}

ServiceSettings serviceSettings = gson.fromJson(fileContent, ServiceSettings.class);
String baseUrl = serviceSettings.getUrl();
RestTemplate restTemplate = new RestTemplate();
String result = restTemplate.postForObject(baseUrl, serviceSettings.getItems(), String.class); //Assuming there is a getter for items