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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{

private int showapi_res_code;

private String showapi_res_error;

private PageBeanBody showapi_res_body;

//省略get set方法

}

PageBeanBody.java

public class PageBeanBody {

private PageBean pagebean;

private int ret_code;

//省略get set方法

}

PageBean.java

public class PageBean {

private int allNum;

private int allPages;

private int currentPage;

private int maxResult;

private List contentlist;

//省略get set方法

}

泛型方法

public static RootEntity parseNewsList(Response response,Class 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 pageBean=new PageBean();

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 pageBeanBody=new PageBeanBody();

pageBeanBody.setPagebean(pageBean);

pageBeanBody.setRet_code(body.getIntValue("ret_code"));

//实例化Root类

RootEntity rootEntity=new RootEntity();

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 param, LinkedHashMap headers,

String bodyJson, String post) {

Response response = StaticUtil.commomHttpMethod(url, param, headers, bodyJson, post);

//调用泛型方法

RootEntity 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());

}