java.lang.IllegalArgumentException: Illegal character in query at index

Posted 2021-06-21 xiejunna

问题描述：
java get 请求时，抛异常：java.lang.IllegalArgumentException: Illegal character in query at index 123
问题出现原因：
get请求参数中含特殊符号导致。例如：http://www.xxx.com/querycityid?city=北 京
参数中的空格导致了异常出现，当去掉参数中的空格时，无异常
解决：请求地址转成URI对象

import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;

			String urlparams = url + "?" + queryparams;
			//未修改之前
			//reqMethod = RequestBuilder.get().setUri(urlparams).setConfig(requestConfig).build();
			URL urlget = null;
			try {
				//修改后
				urlget = new URL(urlparams);
				URI uri = new URI(urlget.getProtocol(), urlget.getHost(), urlget.getPath(), urlget.getQuery(), null);
				reqMethod = RequestBuilder.get().setUri(uri).setConfig(requestConfig).build();
			} catch (MalformedURLException | URISyntaxException e) {
				logger.error("{}",e.getMessage());
			}