From 4c54c359ae4995e94c057e3f5f1314be3283de08 Mon Sep 17 00:00:00 2001
From: SunWenxuan <3148628230@qq.com>
Date: Tue, 19 May 2026 11:19:20 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'w11'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 w11/ASiteCrawlStrategy.java       | 15 +++++++++++++++
 w11/CrawlException.java           | 14 ++++++++++++++
 w11/NetworkException.java         |  9 +++++++++
 w11/ParseException.java           | 10 ++++++++++
 w11/UnsupportedSiteException.java |  8 ++++++++
 5 files changed, 56 insertions(+)
 create mode 100644 w11/ASiteCrawlStrategy.java
 create mode 100644 w11/CrawlException.java
 create mode 100644 w11/NetworkException.java
 create mode 100644 w11/ParseException.java
 create mode 100644 w11/UnsupportedSiteException.java

diff --git a/w11/ASiteCrawlStrategy.java b/w11/ASiteCrawlStrategy.java
new file mode 100644
index 0000000..93daa9a
--- /dev/null
+++ b/w11/ASiteCrawlStrategy.java
@@ -0,0 +1,15 @@
+package com.example.datacollect;
+
+// 先定义爬虫策略接口（必须先建这个，否则ASiteCrawlStrategy会报错）
+public interface ASiteCrawlStrategy {
+    void crawl(String url);
+}
+
+// A网站爬虫策略类（实现上面的接口）
+class ASiteCrawlStrategyImpl implements CrawlStrategy {
+    @Override
+    public void crawl(String url) {
+        // 先写简单逻辑：打印爬取信息
+        System.out.println("正在爬取A网站：" + url);
+    }
+}
\ No newline at end of file
diff --git a/w11/CrawlException.java b/w11/CrawlException.java
new file mode 100644
index 0000000..ce67343
--- /dev/null
+++ b/w11/CrawlException.java
@@ -0,0 +1,14 @@
+package com.example.datacollect;
+
+// 根异常：继承RuntimeException（Unchecked异常），爬虫项目所有异常都继承它
+public class CrawlException extends RuntimeException {
+    // 构造器1：只传错误信息
+    public CrawlException(String message) {
+        super(message);
+    }
+
+    // 构造器2：传错误信息+原始异常（方便排查根因）
+    public CrawlException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}
\ No newline at end of file
diff --git a/w11/NetworkException.java b/w11/NetworkException.java
new file mode 100644
index 0000000..1516cd5
--- /dev/null
+++ b/w11/NetworkException.java
@@ -0,0 +1,9 @@
+package com.example.datacollect;
+
+// 网络异常：继承根异常CrawlException
+public class NetworkException extends CrawlException {
+    public NetworkException(String message) {
+        // 给错误信息加前缀，方便定位
+        super("网络请求失败：" + message);
+    }
+}
diff --git a/w11/ParseException.java b/w11/ParseException.java
new file mode 100644
index 0000000..b63498e
--- /dev/null
+++ b/w11/ParseException.java
@@ -0,0 +1,10 @@
+package com.example.datacollect;
+
+// 解析异常：继承根异常CrawlException
+public class ParseException extends CrawlException {
+    public ParseException(String message) {
+        super("数据解析失败：" + message);
+    }
+}
+    
+
diff --git a/w11/UnsupportedSiteException.java b/w11/UnsupportedSiteException.java
new file mode 100644
index 0000000..6af593e
--- /dev/null
+++ b/w11/UnsupportedSiteException.java
@@ -0,0 +1,8 @@
+package com.example.datacollect;
+
+// 不支持的网站异常：继承根异常CrawlException
+public class UnsupportedSiteException extends CrawlException {
+    public UnsupportedSiteException(String siteKey) {
+        super("不支持的网站类型：" + siteKey);
+    }
+}
\ No newline at end of file