实现效果：中间大广告显示
实现前端系统获取后端系统提供的接口。zheyi-portal调用zheyi-rest调用zheyi-manager。
Rest层
在zheyi-rest工程下创建。
Service:1
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17@Service
public class ContentServiceImpl implements ContentService {
@Autowired
private TbContentMapper contentMapper;
@Override
public List<TbContent> getContentList(long contentCategoryId) {
TbContentExample example = new TbContentExample();
Criteria criteria = example.createCriteria();
criteria.andCategoryIdEqualTo(contentCategoryId);
List<TbContent> result = contentMapper.selectByExample(example);
return result;
}
}
Controller:1
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16@Controller
@RequestMapping("/content")
public class ContentServiceController {
@Autowired
private ContentService contentService;
@RequestMapping("/list/{contentCategoryId}")
@ResponseBody
public TaotaoResult getContentList(@PathVariable long contentCategoryId){
List<TbContent> result = contentService.getContentList(contentCategoryId);
return TaotaoResult.ok(result);
}
}
httpclient
HttpClient是Apache Jakarta Common下的子项目，用来提供高效的、最新的、功能丰富的支持HTTP协议的客户端编程工具包，并且它支持HTTP协议最新的版本和建议。
官网: httpclient
Frontend层
在zheyi-portal，需要使用httpclient调用taotao-rest的服务。
Service:
返回一个json字符串。1
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34@Service
public class ContentServiceImpl implements ContentService {
@Value("${REST_BASE_URL}")
private String REST_BASE_URL;
@Value("${REST_INDEX_AD_URL}")
private String REST_INDEX_AD_URL;
@Override
public String getContentList() {
String result = HttpClientUtil.doGet(REST_BASE_URL + REST_INDEX_AD_URL);
TaotaoResult taotaoResult = TaotaoResult.formatToList(result, TbContent.class);
//取内容列表
List<TbContent> list = (List<TbContent>) taotaoResult.getData();
List<Map> resultList = new ArrayList<>();
//创建一个jsp页码要求的pojo列表
for (TbContent tbContent : list) {
Map map = new HashMap<>();
map.put("src", tbContent.getPic());
map.put("height", 240);
map.put("width", 670);
map.put("srcB", tbContent.getPic2());
map.put("widthB", 550);
map.put("heightB", 240);
map.put("href", tbContent.getUrl());
map.put("alt", tbContent.getSubTitle());
resultList.add(map);
}
return JsonUtils.objectToJson(resultList);
}
}
Controller:
返回一个逻辑视图。1
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14@Controller
public class HomeConrtoller {
@Autowired
private ContentService contentService;
@RequestMapping("/index")
public String home(Model model){
String adJson = contentService.getContentList();
model.addAttribute("ad1", adJson);
return "index";
}
}
