我正在用Spring开发一些宁静的服务.我将传递/获取字符串数组或大字符串作为参数传递给我的服务控制器时遇到了麻烦.我的代码示例如下所示;

控制器：

@RequestMapping(value="/getLocationInformations/{pointList}", method=RequestMethod.GET)
@ResponseBody
public LocationInfoObject getLocationInformations(@PathVariable("pointList") String pointList)
{
    // code block
}

样本点列表：

String pointList = "37.0433;35.2663,37.0431;35.2663,37.0429;35.2664,37.0428;35.2664,37.0426;35.2665,37.0424;35.2667,37.0422;35.2669,37.042;35.2671,37.0419;35.2673,37.0417;35.2674,37.0415;35.2674,37.0412;35.2672,37.0408;35.267,37.04;35.2667,37.0396;35.2665,37.0391;35.2663,37.0388;35.2662,37.0384;35.266,37.0381;35.2659,37.0379;35.2658,37.0377;35.2657,37.0404;35.2668,37.0377;35.2656,37.0378;35.2652,37.0378;35.2652,37.0381;35.2646,37.0382;35.264,37.0381;35.2635,37.038;35.263,37.0379;35.2627,37.0378;35.2626,37.0376;35.2626,37.0372;35.2627,37.0367;35.2628,37.0363;35.2628,37.036;35.2629,37.0357;35.2629,37.0356;35.2628,37.0356;35.2628,37.0355;35.2626";

Web服务客户端代码：

Map<String, String> vars = new HashMap<String, String>();
vars.put("pointList", pointList);

String apiUrl = "http://api.website.com/service/getLocationInformations/{pointList}";

RestTemplate restTemplate = new RestTemplate();
LocationInfoObject result = restTemplate.getForObject(apiUrl, LocationInfoObject.class, vars);

当我运行客户端应用程序时,它会抛出一个HttpClientErrorException：400 Bad Request,我认为长位置信息字符串会导致此问题.那么,我该如何解决这个问题呢？或者是否可以将长字符串值作为参数发布到Web服务？

大家好

解决方法:

列表或其他类型的对象可以使用RestTemplate的postForObject方法发布.我的解决方案如下：

控制器：

@RequestMapping(value="/getLocationInformations", method=RequestMethod.POST)
@ResponseBody
public LocationInfoObject getLocationInformations(@RequestBody RequestObject requestObject)
{
    // code block
}

创建一个发布到服务的请求对象：

public class RequestObject implements Serializable
{
    public List<Point> pointList    = null;
}

public class Point 
{
    public Float latitude = null;
    public Float longitude = null;
}

创建响应对象以从服务获取值：

public class ResponseObject implements Serializable
{
    public Boolean success                  = false;
    public Integer statusCode               = null;
    public String status                    = null;
    public LocationInfoObject locationInfo  = null;
}

使用请求对象发布点列表并从服务获取响应对象：

String apiUrl = "http://api.website.com/service/getLocationInformations";
RequestObject requestObject = new RequestObject();
// create pointList and add to requestObject
requestObject.setPointList(pointList);

RestTemplate restTemplate = new RestTemplate();
ResponseObject response = restTemplate.postForObject(apiUrl, requestObject, ResponseObject.class);

// response.getSuccess(), response.getStatusCode(), response.getStatus(), response.getLocationInfo() can be used