增加错误重试功能...

Frm_Main.Designer.cs

@@ -28,15 +28,21 @@
         /// </summary>
         private void InitializeComponent()
         {
-            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle5 = new System.Windows.Forms.DataGridViewCellStyle();
-            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle6 = new System.Windows.Forms.DataGridViewCellStyle();
-            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle7 = new System.Windows.Forms.DataGridViewCellStyle();
             System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle1 = new System.Windows.Forms.DataGridViewCellStyle();
             System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle2 = new System.Windows.Forms.DataGridViewCellStyle();
             System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle3 = new System.Windows.Forms.DataGridViewCellStyle();
             System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle4 = new System.Windows.Forms.DataGridViewCellStyle();
+            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle5 = new System.Windows.Forms.DataGridViewCellStyle();
+            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle6 = new System.Windows.Forms.DataGridViewCellStyle();
+            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle7 = new System.Windows.Forms.DataGridViewCellStyle();
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Frm_Main));
             this.SearchView = new System.Windows.Forms.DataGridView();
+            this.company = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.keyword = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.百度s = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.必应s = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.搜狗s = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.sum = new System.Windows.Forms.DataGridViewTextBoxColumn();
             this.ResultView = new System.Windows.Forms.DataGridView();
             this.公司名称 = new System.Windows.Forms.DataGridViewTextBoxColumn();
             this.关键词 = new System.Windows.Forms.DataGridViewTextBoxColumn();
@@ -54,12 +60,8 @@
             this.saveFile = new System.Windows.Forms.SaveFileDialog();
             this.clearresult = new System.Windows.Forms.Button();
             this.clearsearch = new System.Windows.Forms.Button();
-            this.company = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.label2 = new System.Windows.Forms.Label();
-            this.keyword = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.retry = new System.Windows.Forms.TextBox();
-            this.百度s = new System.Windows.Forms.DataGridViewTextBoxColumn();
-            this.必应s = new System.Windows.Forms.DataGridViewTextBoxColumn();
-            this.搜狗s = new System.Windows.Forms.DataGridViewTextBoxColumn();
-            this.sum = new System.Windows.Forms.DataGridViewTextBoxColumn();
             ((System.ComponentModel.ISupportInitialize)(this.SearchView)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.ResultView)).BeginInit();
             this.SuspendLayout();
@@ -80,6 +82,50 @@
             this.SearchView.Size = new System.Drawing.Size(850, 200);
             this.SearchView.TabIndex = 0;
             // 
+            // company
+            // 
+            this.company.HeaderText = "公司网址";
+            this.company.Name = "company";
+            this.company.Width = 150;
+            // 
+            // keyword
+            // 
+            this.keyword.HeaderText = "关键词(用英文逗号隔开)";
+            this.keyword.Name = "keyword";
+            this.keyword.Width = 330;
+            // 
+            // 百度s
+            // 
+            dataGridViewCellStyle1.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
+            this.百度s.DefaultCellStyle = dataGridViewCellStyle1;
+            this.百度s.HeaderText = "百度第一页";
+            this.百度s.Name = "百度s";
+            this.百度s.Width = 90;
+            // 
+            // 必应s
+            // 
+            dataGridViewCellStyle2.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
+            this.必应s.DefaultCellStyle = dataGridViewCellStyle2;
+            this.必应s.HeaderText = "必应第一页";
+            this.必应s.Name = "必应s";
+            this.必应s.Width = 90;
+            // 
+            // 搜狗s
+            // 
+            dataGridViewCellStyle3.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
+            this.搜狗s.DefaultCellStyle = dataGridViewCellStyle3;
+            this.搜狗s.HeaderText = "搜狗第一页";
+            this.搜狗s.Name = "搜狗s";
+            this.搜狗s.Width = 90;
+            // 
+            // sum
+            // 
+            dataGridViewCellStyle4.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
+            this.sum.DefaultCellStyle = dataGridViewCellStyle4;
+            this.sum.HeaderText = "总计";
+            this.sum.Name = "sum";
+            this.sum.Width = 55;
+            // 
             // ResultView
             // 
             this.ResultView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
@@ -147,7 +193,7 @@
             // 
             // max
             // 
-            this.max.Location = new System.Drawing.Point(663, 10);
+            this.max.Location = new System.Drawing.Point(663, 4);
             this.max.Name = "max";
             this.max.Size = new System.Drawing.Size(83, 21);
             this.max.TabIndex = 3;
@@ -156,7 +202,7 @@
             // label1
             // 
             this.label1.AutoSize = true;
-            this.label1.Location = new System.Drawing.Point(592, 13);
+            this.label1.Location = new System.Drawing.Point(592, 7);
             this.label1.Name = "label1";
             this.label1.Size = new System.Drawing.Size(65, 12);
             this.label1.TabIndex = 7;
@@ -218,54 +264,30 @@
             this.clearsearch.UseVisualStyleBackColor = true;
             this.clearsearch.Click += new System.EventHandler(this.clearsearch_Click);
             // 
-            // company
+            // label2
             // 
-            this.company.HeaderText = "公司网址";
+            this.label2.AutoSize = true;
-            this.company.Name = "company";
+            this.label2.BackColor = System.Drawing.SystemColors.ControlLight;
-            this.company.Width = 150;
+            this.label2.Location = new System.Drawing.Point(592, 34);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(65, 12);
+            this.label2.TabIndex = 14;
+            this.label2.Text = "失败重试: ";
             // 
-            // keyword
+            // retry
             // 
-            this.keyword.HeaderText = "关键词(用英文逗号隔开)";
+            this.retry.Location = new System.Drawing.Point(663, 31);
-            this.keyword.Name = "keyword";
+            this.retry.Name = "retry";
-            this.keyword.Width = 330;
+            this.retry.Size = new System.Drawing.Size(83, 21);
-            // 
+            this.retry.TabIndex = 13;
-            // 百度s
+            this.retry.Text = "3";
-            // 
-            dataGridViewCellStyle1.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
-            this.百度s.DefaultCellStyle = dataGridViewCellStyle1;
-            this.百度s.HeaderText = "百度第一页";
-            this.百度s.Name = "百度s";
-            this.百度s.Width = 90;
-            // 
-            // 必应s
-            // 
-            dataGridViewCellStyle2.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
-            this.必应s.DefaultCellStyle = dataGridViewCellStyle2;
-            this.必应s.HeaderText = "必应第一页";
-            this.必应s.Name = "必应s";
-            this.必应s.Width = 90;
-            // 
-            // 搜狗s
-            // 
-            dataGridViewCellStyle3.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
-            this.搜狗s.DefaultCellStyle = dataGridViewCellStyle3;
-            this.搜狗s.HeaderText = "搜狗第一页";
-            this.搜狗s.Name = "搜狗s";
-            this.搜狗s.Width = 90;
-            // 
-            // sum
-            // 
-            dataGridViewCellStyle4.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
-            this.sum.DefaultCellStyle = dataGridViewCellStyle4;
-            this.sum.HeaderText = "总计";
-            this.sum.Name = "sum";
-            this.sum.Width = 55;
             // 
             // Frm_Main
             // 
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
             this.ClientSize = new System.Drawing.Size(872, 603);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.retry);
             this.Controls.Add(this.clearsearch);
             this.Controls.Add(this.clearresult);
             this.Controls.Add(this.readin);
@@ -315,6 +337,8 @@
         private System.Windows.Forms.DataGridViewTextBoxColumn 必应s;
         private System.Windows.Forms.DataGridViewTextBoxColumn 搜狗s;
         private System.Windows.Forms.DataGridViewTextBoxColumn sum;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.TextBox retry;
 
     }
 }

Frm_Main.cs

@@ -99,17 +99,25 @@ namespace SEOKeywordSearch
                         {
                             if (item.Cells[s.ToString() + "s"].Value == null)
                                 item.Cells[s.ToString() + "s"].Value = 0;
+                            state.ForeColor = Color.Black;
                             state.Text = "正在 " + s.ToString() + " 查询 " + cpy + " 的关键词 " + key;
                             for (int i = 1; i <= maxpage; i++)
                             {
                                 string url = String.Format(UrlEnum.GetUrl(s), HttpUtility.UrlEncode(key), (s.ToString() == "搜狗" ? i : i - 1));//s搜狗的页面值不同
                                 this.ResultView.Rows[index].Cells[s.ToString() + "r"].Value = "查询第" + i + "页...";
                                 Application.DoEvents();
+                                for (int k = 1; k < int.Parse(retry.Text); k++)
+                                {
                                     httpHelper.Send(HttpMethod.GET, url);
                                     while (httpHelper.readyState != HttpReadyState.完成)
                                     {
                                         Application.DoEvents();
                                     }
+                                    if (!(string.IsNullOrEmpty(httpHelper.responseBody) || httpHelper.responseBody.StartsWith("0")))
+                                        break;
+                                    state.ForeColor = Color.Red;
+                                    state.Text = "关键词 " + key + " 在 " + s.ToString() + " 第 " + i + " 页 网页抓取失败 重试第 " + k + " 次";
+                                }
                                 string htmldoc = httpHelper.responseBody;
                                 if (string.IsNullOrEmpty(htmldoc))
                                 {