Spring FrameWork Restful WebService
- Restful https服务调用: 1)、创建CloseableHttpClient httpClient =HttpClientUtils.acceptsUntrustedCertsHttpClient();，引用jar包： import org.apache.http.impl.client.CloseableHttpClient; HttpClientUtils工具类：
2）创建requestFactory:HttpComponentsClientHttpRequestFactory c =new HttpComponentsClientHttpRequestFactory(httpClient); 引用jar包： import org.springframework.http.client.HttpComponentsClientHttpRequestFactory; 3) 创建RestTemplate: RestTemplate restTemplate = new RestTemplate(c); 引用jar包： import org.springframework.web.client.RestTemplate 4)添加验证： 创建用户信息String base64ClientCredentials = new String(Base64.encodeBase64(“username:password”)); 放入消息头中： HttpHeaders requestHeaders = new HttpHeaders(); requestHeaders.add("Authorization", "Basic " + base64ClientCredentials); 5）将传输方式、编码格式及其他扩展信息放入消息头中，如： requestHeaders.add("Accept", "application/json"); requestHeaders.add("Content-Type", "application/json;charset=UTF-8"); requestHeaders.add("X-SGM-MSG-ID", uuid); requestHeaders.add("X-SGM-FROM-SYS-ID", "ITSS"); requestHeaders.add("X-SGM-TO-SYS-ID", "ITPM"); requestHeaders.add("X-SGM-MSG-TS", sdf.format(date));
6）创建传递参数：
Map<String,Object> tomap = new HashMap<String,Object>();
tomap.put("projCode", projCode);
tomap.put("projScore", score);
7）将信息放入HttpEntity中：
HttpEntity entity = new HttpEntity(toMap,requestHeaders);
8）发送信息获取返回值：
ResponseEntity response = restTemplate.postForEntity(
addr,
entity, Map.class);
Map returnMap = response.getBody();
2. Restful http服务调用:
一: RestTemplate方式调用
- 配置文件中增加
4）创建传递参数：
Map<String,Object> tomap = new HashMap<String,Object>();
tomap.put("projCode", projCode);
tomap.put("projScore", score);
5）将信息放入HttpEntity中：
HttpEntity entity = new HttpEntity(toMap,requestHeaders);
6）发送信息获取返回值：
ResponseEntity response = restTemplate.postForEntity(
addr,
entity, Map.class);
Map returnMap = response.getBody();
二: HttpClient调用
1）创建HttpClient对象：
HttpClient client = HttpClients.createDefault();
引用jar: import org.apache.http.client.HttpClient;
2）创建请求链接：
HttpPost request = new HttpPost(addr);
引用jar: import org.apache.http.client.methods.HttpPost;
2) 添加标题信息：
request.setHeader("Accept", "application/json");
request. setHeader ("Content-Type", "application/json;charset=UTF-8");
request. setHeader ("X-SGM-MSG-ID", uuid);
request. setHeader ("X-SGM-FROM-SYS-ID", "ITSS");
request. setHeader ("X-SGM-TO-SYS-ID", "ITPM");
request. setHeader ("X-SGM-MSG-TS", sdf.format(date));
3）配置传递参数：
List nvps = new ArrayList();
nvps.add(new BasicNameValuePair("projCode ", projCode));
nvps.add(new BasicNameValuePair("projScore ", score));
UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nvps, "UTF-8");
request2.setEntity(formEntity);
引用jar: import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.NameValuePair;
4) 调用接口、获取返回信息
HttpResponse response2 = client.execute(request2);
HttpEntity entity = response2.getEntity();
ObjectMapper mapper = new ObjectMapper();
Map map = mapper.readValue(entity.getContent(),Map.class);