HttpHeaders headers = new HttpHeaders();Enumeration<String> headerNames = request.getHeaderNames();while (headerNames.hasMoreElements()) {  String key = (String) headerNames.nextElement();  String value = request.getHeader(key);  headers.add(key, value);}        String restStrResult = restTemplate.postForObject(url, /*携带header*/new HttpEntity<String>(headers), String.class,
　　　　　　　　　　　　 /*携带parameter*/request.getParameterMap());

import java.util.Enumeration;import java.util.Map;import javax.servlet.ServletRequest;import javax.servlet.http.HttpServletRequest;import org.springframework.http.HttpEntity;import org.springframework.http.HttpHeaders;import org.springframework.http.HttpMethod;import org.springframework.http.ResponseEntity;import org.springframework.web.client.RestTemplate;public class RestTemplateUtil {        private RestTemplate restTemplate;        public void setRestTemplate(RestTemplate restTemplate) {        this.restTemplate = restTemplate;    }    public String post(ServletRequest req, String url, Map<String, ?> params) {        ResponseEntity<String> rss = request(req, url, HttpMethod.POST, params);        return rss.getBody();    }    public String get(ServletRequest req, String url, Map<String, ?> params) {        ResponseEntity<String> rss = request(req, url, HttpMethod.GET, params);        return rss.getBody();    }        public String delete(ServletRequest req, String url, Map<String, ?> params) {        ResponseEntity<String> rss = request(req, url, HttpMethod.DELETE, params);        return rss.getBody();    }        public String put(ServletRequest req, String url, Map<String, ?> params) {        ResponseEntity<String> rss = request(req, url, HttpMethod.PUT, params);        return rss.getBody();    }        /**     * @param req     * @param url     * @param method     * @param params maybe null     * @return     */    private ResponseEntity<String> request(ServletRequest req, String url, HttpMethod method, Map<String, ?> params) {        HttpServletRequest request = (HttpServletRequest) req;        //获取header信息        HttpHeaders requestHeaders = new HttpHeaders();        Enumeration<String> headerNames = request.getHeaderNames();        while (headerNames.hasMoreElements()) {          String key = (String) headerNames.nextElement();          String value = request.getHeader(key);          requestHeaders.add(key, value);        }        //获取parameter信息        if(params == null) {            params = request.getParameterMap();        }                HttpEntity<String> requestEntity = new HttpEntity<String>(null, requestHeaders);        ResponseEntity<String> rss = restTemplate.exchange(url, method, requestEntity, String.class, params);        return rss;    }}