API json多层数据实体类封装（利用泛型技术）

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1： API json多层数据实体类封装（利用泛型技术）

RootEntity.java

public class RootEntity<T>{private int showapi_res_code;private String showapi_res_error;private PageBeanBody<T> showapi_res_body;//省略get set方法}

PageBeanBody.java

public class PageBeanBody<T> {    private PageBean<T> pagebean;    private int ret_code;     //省略get set方法}

PageBean.java

public class PageBean<T> {private int allNum; private int allPages;private int currentPage;private int maxResult;private List<T> contentlist;//省略get set方法}

泛型方法

 public static <T> RootEntity<T> parseNewsList(Response response,Class<T> mClazz) {        JSONObject root=JSON.parseObject(response.getResponseText());        JSONObject body=JSON.parseObject(response.getResponseText()).getJSONObject("showapi_res_body");        JSONObject page=JSON.parseObject(response.getResponseText()).getJSONObject("showapi_res_body").getJSONObject("pagebean");        String contentList=JSON.parseObject(response.getResponseText()).getJSONObject("showapi_res_body").getJSONObject("pagebean").getJSONArray("contentlist").toJSONString();        //实例化分页类        PageBean<T> pageBean=new PageBean<T>();        pageBean.setContentlist(JSON.parseArray(contentList, mClazz));//可能报错        pageBean.setAllNum(page.getIntValue("allNum"));        pageBean.setAllPages(page.getIntValue("allPages"));        pageBean.setCurrentPage(page.getIntValue("currentPage"));        pageBean.setMaxResult(page.getIntValue("maxResult"));        //实例化Body类        PageBeanBody<T> pageBeanBody=new PageBeanBody<T>();        pageBeanBody.setPagebean(pageBean);        pageBeanBody.setRet_code(body.getIntValue("ret_code"));        //实例化Root类        RootEntity<T> rootEntity=new RootEntity<T>();        rootEntity.setShowapi_res_body(pageBeanBody);        rootEntity.setShowapi_res_code(root.getIntValue("showapi_res_code"));        rootEntity.setShowapi_res_error(root.getString("showapi_res_error"));        return rootEntity;    }

调用泛型方法

public static void loadNewsList(String url, Map<String, Object> param, LinkedHashMap<String, Object> headers,            String bodyJson, String post) {        Response response = StaticUtil.commomHttpMethod(url, param, headers, bodyJson, post);        //调用泛型方法         RootEntity<NewEntity> data= parseNewsList(response, NewEntity.class);        System.out.println("desc:"+data.getShowapi_res_body().getPagebean().getContentlist().get(0).getImageurls().size());        System.out.println("code:"+data.getShowapi_res_code());        System.out.println("error:"+data.getShowapi_res_error());        System.out.println("allnum:"+data.getShowapi_res_body().getPagebean().getAllNum());        System.out.println("allpages:"+data.getShowapi_res_body().getPagebean().getAllPages());        System.out.println("currentpages:"+data.getShowapi_res_body().getPagebean().getCurrentPage());        System.out.println("maxresult:"+data.getShowapi_res_body().getPagebean().getMaxResult());    }

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