restTemplate调用转义问题

例：
cmpUsername: username

cmpPassword: &dK83#5Cs0s（&等字符设计转义问题，如果用String直接拼接密码，则转义会出现问题）

String url;
url = cmpTokenUrl + "?username=" + cmpUsername + "&password=" + cmpPassword;
ResponseEntity<String> result;
HttpHeaders httpHeaders = getHttpHeaders();
log.info("getCmpTokenUrl,请求路径:{},请求头：{}", url, httpHeaders);
try {
  result = restTemplate
    .exchange(url, HttpMethod.POST,
              new HttpEntity<>(null, httpHeaders), String.class);
} catch (Exception e) {
  log.error("获取token出错:" + e);
  throw new BizException(String.format("获取token失败:[%s]", e.getMessage()));
}

使用URIBuilder中的方法设置param：

URI uri;
try {
  uri = new URI(cmpTokenUrl);
  URIBuilder uriBuilder = new URIBuilder(uri);
  List<NameValuePair> paramPairs = new ArrayList<>();
  paramPairs.add(new BasicNameValuePair("username", cmpUsername));
  paramPairs.add(new BasicNameValuePair("password", cmpPassword));
  uriBuilder.setParameters(paramPairs);
  uri = uriBuilder.build();
} catch (URISyntaxException e) {
  log.error("构建URL发生异常: {}", e.getMessage());
  throw new CheckException(String.format("构建URL发生异常:[%s]", e.getMessage()));
}
ResponseEntity<String> result;
HttpHeaders httpHeaders = getHttpHeaders();
log.info("getCmpTokenUrl,请求路径:{},请求头：{}", uri, httpHeaders);
try {
  result = restTemplate
    .exchange(uri, HttpMethod.POST,
              new HttpEntity<>(null, httpHeaders), String.class);
} catch (Exception e) {
  log.error("获取token出错:" + e);
  throw new BizException(String.format("获取token失败:[%s]", e.getMessage()));
}