package com.vci.ubcs.code.util;
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import org.springframework.http.*;
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import org.springframework.util.LinkedMultiValueMap;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.client.RestTemplate;
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import javax.servlet.http.HttpServletRequest;
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/**
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* http请求工具类
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*
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* @since 2020-03-25
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*/
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public class HttpUtils {
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//Content-Type的key
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public static String CONTENT_TYPE = "Content-Type";
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//json数据
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public static String CONTENT_TYPE_JSON = MediaType.APPLICATION_JSON_VALUE;
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public static String CONTENT_TYPE_JSON_UTF8 = MediaType.APPLICATION_JSON_UTF8_VALUE;
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//表单格式,默认
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public static String CONTENT_TYPE_TEXT = MediaType.APPLICATION_FORM_URLENCODED_VALUE;
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/**
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* get请求
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*
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* @param url
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* @return
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*/
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public static String get(String url) {
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return get(url, null);
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}
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/**
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* get请求
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*
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* @param url
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* @param headers 请求头
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* @return
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*/
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public static String get(String url, MultiValueMap<String, String> headers) {
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return request(url, null, headers, HttpMethod.GET);
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}
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/**
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* post请求
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*
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* @param url
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* @param params 请求参数
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* @return
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*/
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public static String post(String url, MultiValueMap<String, String> params) {
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return post(url, params, null);
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}
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/**
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* post请求
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*
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* @param url
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* @param params 请求参数
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* @param headers 请求头
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* @return
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*/
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public static String post(String url, MultiValueMap<String, String> params, MultiValueMap<String, String> headers) {
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return request(url, params, headers, HttpMethod.POST);
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}
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/**
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* put请求
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*
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* @param url
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* @param params 请求参数
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* @return
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*/
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public static String put(String url, MultiValueMap<String, String> params) {
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return put(url, params, null);
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}
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/**
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* put请求
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*
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* @param url
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* @param params 请求参数
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* @param headers 请求头
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* @return
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*/
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public static String put(String url, MultiValueMap<String, String> params, MultiValueMap<String, String> headers) {
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return request(url, params, headers, HttpMethod.PUT);
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}
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/**
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* delete请求
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*
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* @param url
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* @param params 请求参数
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* @return
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*/
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public static String delete(String url, MultiValueMap<String, String> params) {
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return delete(url, params, null);
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}
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/**
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* delete请求
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*
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* @param url
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* @param params 请求参数
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* @param headers 请求头
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* @return
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*/
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public static String delete(String url, MultiValueMap<String, String> params, MultiValueMap<String, String> headers) {
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return request(url, params, headers, HttpMethod.DELETE);
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}
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/**
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* 表单请求
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*
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* @param url
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* @param params 请求参数
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* @param headers 请求头
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* @param method 请求方式
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* @return
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*/
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public static String request(String url, MultiValueMap<String, String> params, MultiValueMap<String, String> headers, HttpMethod method) {
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if (params == null) {
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params = new LinkedMultiValueMap<>();
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}
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return request(url, params, headers, method, MediaType.APPLICATION_FORM_URLENCODED);
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}
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/**
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* http请求
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*
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* @param url
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* @param params 请求参数
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* @param headers 请求头
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* @param method 请求方式
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* @param mediaType 参数类型
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* @return
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*/
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public static String request(String url, Object params, MultiValueMap<String, String> headers, HttpMethod method, MediaType mediaType) {
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if (url == null || url.trim().isEmpty()) {
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return null;
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}
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RestTemplate client = new RestTemplate();
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// header
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HttpHeaders httpHeaders = new HttpHeaders();
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if (headers != null) {
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httpHeaders.addAll(headers);
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}
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// 提交方式：表单、json
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httpHeaders.setContentType(mediaType);
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HttpEntity<Object> httpEntity = new HttpEntity(params, httpHeaders);
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ResponseEntity<String> response = client.exchange(url, method, httpEntity, String.class);
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return response.getBody();
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}
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public static MultiValueMap<String, String> set_params_headers(String key,String value,MultiValueMap<String, String> map){
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if(map==null){
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map = new LinkedMultiValueMap<>();
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}
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map.add(key,value);
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return map;
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}
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/**
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* 获取ip
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* @param request
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* @return
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*/
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public static String getIpAddressFromRequest(HttpServletRequest request){
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String ip = request.getHeader("X-Forwarded-For");
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("HTTP_CLIENT_IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("HTTP_X_FORWARDED_FOR");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getRemoteAddr();
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}
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if (ip == null || ip.length() == 0 || ip.indexOf("0:0:0:0:0:0:0:1") >-1) {
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//0:0:0:0:0:0:0:1是本机在访问
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ip = "127.0.0.1";
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}
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return ip;
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}
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}
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