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增加ExceptionFilter和DefaultExceptionFilter支持异常处理

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Looly 2024-05-06 15:52:00 +08:00
parent 768e890e2c
commit d07cece0d4
5 changed files with 114 additions and 1 deletions
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3
CHANGELOG.md
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# 🚀Changelog
-------------------------------------------------------------------------------------------------------------
# 5.8.28(2024-04-29)
# 5.8.28(2024-05-06)
### 🐣新特性
* 【core 】 修正XmlUtil的omitXmlDeclaration描述注释（issue#I9CPC7@Gitee）
@ -14,6 +14,7 @@
* 【core 】 NumberChineseFormatter提供阿拉伯转中文支持多位小数的方法（pr#3552@Github）
* 【captcha】 Captcha.setBackground为null时背景透明（issue#3558@Github）
* 【captcha】 HttpDownloader.downloadBytes增加超时参数重载（issue#3556@Github）
* 【http 】 增加ExceptionFilter和DefaultExceptionFilter支持异常处理（issue#3568@Github）
### 🐞Bug修复
* 【http 】 修复HttpUtil.urlWithFormUrlEncoded方法重复编码问题（issue#3536@Github）

37
hutool-http/src/main/java/cn/hutool/http/server/filter/DefaultExceptionFilter.java Normal file
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/*
* Copyright (c) 2023. looly(loolly@aliyun.com)
* Hutool is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* https://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
package cn.hutool.http.server.filter;
import cn.hutool.core.exceptions.ExceptionUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.http.server.HttpServerRequest;
import cn.hutool.http.server.HttpServerResponse;
/**
* 默认异常处理拦截器
*
* @author looly
*/
public class DefaultExceptionFilter extends ExceptionFilter{
private final static String TEMPLATE_ERROR = "<!DOCTYPE html><html><head><title>Hutool - Error report</title><style>h1,h3 {color:white; background-color: gray;}</style></head><body><h1>HTTP Status {} - {}</h1><hr size=\"1\" noshade=\"noshade\" /><p>{}</p><hr size=\"1\" noshade=\"noshade\" /><h3>Hutool</h3></body></html>";
@Override
public void afterException(final HttpServerRequest req, final HttpServerResponse res, final Throwable e) {
String content = ExceptionUtil.stacktraceToString(e);
content = content.replace("\n", "<br/>\n");
content = StrUtil.format(TEMPLATE_ERROR, 500, req.getURI(), content);
res.sendError(500, content);
}
}

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hutool-http/src/main/java/cn/hutool/http/server/filter/ExceptionFilter.java Normal file
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/*
* Copyright (c) 2023. looly(loolly@aliyun.com)
* Hutool is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* https://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
package cn.hutool.http.server.filter;
import cn.hutool.http.server.HttpServerRequest;
import cn.hutool.http.server.HttpServerResponse;
import com.sun.net.httpserver.Filter;
/**
* 异常处理过滤器
*
* @author looly
*/
public abstract class ExceptionFilter implements HttpFilter {
@Override
public void doFilter(final HttpServerRequest req, final HttpServerResponse res, final Filter.Chain chain) {
try {
chain.doFilter(req.getHttpExchange());
} catch (final Throwable e) {
afterException(req, res, e);
}
}
/**
* 异常之后的处理逻辑
*
* @param req {@link HttpServerRequest}
* @param res {@link HttpServerResponse}
* @param e 异常
*/
public abstract void afterException(final HttpServerRequest req, final HttpServerResponse res, final Throwable e);
}

17
hutool-http/src/test/java/cn/hutool/http/server/ExceptionServerTest.java Normal file
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package cn.hutool.http.server;
import cn.hutool.http.HttpUtil;
import cn.hutool.http.server.filter.DefaultExceptionFilter;
import java.io.IOException;
public class ExceptionServerTest {
public static void main(final String[] args) {
HttpUtil.createServer(8888)
.addFilter(new DefaultExceptionFilter())
.addAction("/", (req, res) -> {
throw new RuntimeException("Test Exception");
})
.start();
}
}

15
hutool-http/src/test/java/cn/hutool/http/server/Issue3568Test.java Normal file
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package cn.hutool.http.server;
import cn.hutool.http.HttpUtil;
import java.io.IOException;
public class Issue3568Test {
public static void main(String[] args) {
HttpUtil.createServer(8888)
.addHandler("/", httpExchange -> {
throw new IOException("111");
})
.start();
}
}