1 package com.pmjava.web.taglib;2 import com.pmjava.jdbc.util.ConnectionFacTory;3 import com.pmjava.jdbc.util.DBclose;4 import java.io.PrintStream;5 import java.sql.*;6 import javax.servlet.jsp.*;7 import javax.servlet.jsp.tagext.TagSupport;8 public class DbSelectByDbWhere extends TagSupport9 {10 private static final long serialVersionUID = 1L;11 private String table_name;12 private String id_col_name;13 private String select_id;14 private String name;15 private String name_col_name;16 private String condition;17 private String pleaseselect;18 private String sql_where;19 private String id;20 PreparedStatement ps;21 ResultSet rs;22 Connection con;23 public DbSelectByDbWhere()24 {25 ps = null;26 rs = null;27 con = null;28 try29 {30 jbInit();31 }32 catch (Exception ex)33 {34 ex.printStackTrace();35 }36 }37 public int doStartTag()38 throws JspException39 {40 if (sql_where == null || "null".equals(sql_where))41 sql_where = "";42 if (condition == null || "null".equals(condition))43 condition = "";44 try45 {46 con = ConnectionFacTory.getConnection();47 pageContext.getOut().write("");48 if ("1".equals(pleaseselect))49 pageContext.getOut().write("选择城区");50 String Selected = null;51 String Sql = "select * from " + table_name + " where 1=1 ";52 if (!"".equals(sql_where) || sql_where != null)53 Sql = Sql + " and city_id=" + sql_where + " ";54 ps = con.prepareStatement(Sql);55 for (rs = ps.executeQuery(); rs.next(); pageContext.getOut().write("" + rs.getString(name_col_name) + ""))56 if (rs.getString(name_col_name).equals(select_id))57 Selected = "selected";58 else59 Selected = "";60 pageContext.getOut().write("");61 }62 catch (Exception e)63 {64 e.printStackTrace();65 }66 finally67 {68 DBclose.close(rs, ps, con);69 }70 return 0;71 }72 public void setTable_name(String table_name)73 {74 this.table_name = table_name;75 }76 public void setId_col_name(String id_col_name)77 {78 this.id_col_name = id_col_name;79 }80 public void setSelect_id(String select_id)81 {82 this.select_id = select_id;83 }84 public void setName(String name)85 {86 this.name = name;87 }88 public void setName_col_name(String name_col_name)89 {90 this.name_col_name = name_col_name;91 }92 public void setCondition(String condition)93 {94 this.condition = condition;95 }96 public void setPleaseselect(String pleaseselect)97 {98 this.pleaseselect = pleaseselect;99 }100 public void setSql_where(String sql_where)101 {102 this.sql_where = sql_where;103 }104 public String getTable_name()105 {106 return table_name;107 }108 public String getId_col_name()109 {110 return id_col_name;111 }112 public String getSelect_id()113 {114 return select_id;115 }116 public String getName()117 {118 return name;119 }120 public String getName_col_name()121 {122 return name_col_name;123 }124 public String getCondition()125 {126 return condition;127 }128 public String getPleaseselect()129 {130 return pleaseselect;131 }132 public String getSql_where()133 {134 return sql_where;135 }136 private void jbInit()137 throws Exception138 {139 }140 public static void main(String args1[])141 {142 }143 public String getId()144 {145 return id;146 }147 public void setId(String id)148 {149 this.id = id;150 }151 }
穿过紫堇，穿过木棉，穿过时影时现的悲喜和无常。
