多条件查询

参考其他博客，完成了类似于知网的多条件查询

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*" import="java.util.List" import="java.util.ArrayList" import="net.sf.json.JSONArray"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">

<title>Insert title here</title>

 <style type="text/css">
        #table{
            font-size:20px;
        }
        
        input[type='text'] {
            font-size:20px;
             250px;
            height: 30px;
        }
        input[type='button'] {
            font-size:20px;
             50px;
            height: 30px;
        }
    </style>
</head>
<body style="background-color:#EBC79E">
   
        <form action="mychaxun.jsp" method="post">
        <table name="tbl" id="tbl">
           <p>
            <tr>
                <td>
                    <input type="button" id="add" value="+" onclick="insert_row()" >
                  
                    <select id="select1" name="select1" style='165px;font-size:17px'>
                        <option value="Inamenum">需求编号</option>
                        <option value="Ixqname">需求名称</option>
                        <option value="Ixqbelong">归口管理</option>
                        <option value="Iszdy">所在地域</option>
                        <option value="Ifrdb">法人代表</option>
                        <option value="Iclient">联系人</option>
                        <option value="name">机构属性</option>
                        <option value="name">技术需求名称</option>
                        <option value="Igjz1">关键字</option>
                        <option value="Izjze">拟投入资金总额</option>
                        <option value="Ipeoprety">技术需求解决方式</option>
                        <option value="Itype">科技活动类型</option>
                        <option value="thi">学科分类</option>
                        <option value="Ilingyu">需求技术所属领域</option>
                        <option value="Iresult">需求状态</option>
                    </select>
                    <input type="text" id="SearchBox1" name="SearchBox1">
                    <select id="type1" name="TYPE1" style='50px;height:30px;fone-size:30px'>
                        <option value="=">精确</option>
                        <option value="like">模糊</option>
                    </select>
                </td>
            </tr></p>
        </table>
        <div id="SearchButton">
            <input type="submit" value="查询" style="50px;height:30px;font-size:17px;">
        </div>
        </form>
<table border="1" width="900" name="table1" id="table1">
            <tr>
                <td>需求编号</td>
                <td>需求名称</td>            
                <td>归口管理</td>
                <td>所在地域</td>
                <td>法人代表</td>
                <td>联系人</td>
                <td>机构属性</td>
                <td>技术需求名称</td>
                <td>关键字</td>
                <td>拟投入资金总额</td>
                <td>技术需求解决方式</td>
                <td>科技活动类型</td>
                <td>学科分类</td>
                <td>需求技术所属领域</td>        
                <td>需求状态</td>
                <!--                 <td>原因</td> -->
                <td>操&nbsp;&nbsp;作&nbsp;</td>
                <td>操&nbsp;&nbsp;作&nbsp;</td>
            </tr>
            
            
<%
    System.out.println("mychaxun.jsp 界面信息：");
    System.out.println("");
    request.setCharacterEncoding("utf-8");
    String select[] = new String[15];
    String type[] = new String[15];
    String TYPE[] = new String[15];
    String SearchBox[] = new String[15];
    
    // 获取查询的条件：名字等
    for(int i=0;i<15;i++) {
            select[i] = request.getParameter("select"+(i+1));
            System.out.print(select[i]+" ");
    }
        System.out.println(" ");
        
    // 获取查询条件：并且等
    for(int i=1;i<15;i++) {
        type[i-1] = request.getParameter("type"+(i+1));   
        System.out.print(type[i-1]+" ");   
    }
    System.out.println(" ");
    
    // 获取查询条件:精确等
    for(int i=0;i<15;i++) {
            TYPE[i] = request.getParameter("TYPE"+(i+1));   
        System.out.print(TYPE[i]+" ");    
    }    
        System.out.println(" ");
    for(int i=0;i<15;i++) {
            SearchBox[i] = request.getParameter("SearchBox"+(i+1));
            System.out.print(SearchBox[i]+" "); 
        }
    System.out.println(" ");
    System.out.println(" ");
        System.out.println("mychaxnu.jsp结束");
        System.out.println(" ");

    
    %>
    
<jsp:useBean id="db" class="DBBean.Bean" scope="page" />

<%
String Inamenum = "";
String Iresult = "";
String Ixqname = "";
String Ixqbelong ="";
String Ifrdb="";
String Iszdy="";
String Iclient="";
String Igjz1="";
String Izjze="";
String Ilingyu="";
String Ihzms ="";
String Itype="";
String thi="";
String Ixqyyhy="";
String Ipeoprety="";
    String sql= "select Inamenum,Ixqname,Iresult,Ixqbelong,Ifrdb,Iszdy,Iclient,Igjz1,Izjze,Ilingyu,Ihzms,Itype,thi,Ixqyyhy,Ipeoprety from xuqiu where " + select[0] + " " + TYPE[0];
if(TYPE[0].equals("=")) {
    sql += " '"+SearchBox[0]+"'";
}else {
    sql += " '%"+SearchBox[0]+"%'";
}
int length = 0;
for(int i=0;type[i]!=null;i++,length++) {
}
for(int i=0;i<length;i++) {
    sql = sql +" ";
    if(type[i].equals("not like")) {
        sql += " and " + select[i+1]+" "+type[i]+"  ";
    }else{
        sql += type[i]+" "+select[i+1]+" "+TYPE[i+1]+"  ";
    }
    
    if(TYPE[i+1].equals("=")) {
        sql += " '"+SearchBox[i+1]+"'";
    }else {
        sql += " '%"+SearchBox[i+1]+"%'";
    }
}
System.out.println(sql);

ResultSet rs = db.executeQuery(sql);
while (rs.next()) {
    //System.out.println(rs.getString(1)); //可以输出Inamenum的所有值  比如Iname为图书馆  那么输出图书馆1  图书馆2  图书馆3
    Inamenum = rs.getString(1);
    Iresult = rs.getString(3);
    Ixqname = rs.getString(2);
    Ixqbelong=rs.getString(4);
    Ifrdb=rs.getString(5);
    Iszdy=rs.getString(6);
    Iclient=rs.getString(7);
    Igjz1=rs.getString(8);
    Izjze=rs.getString(9);
    Ilingyu=rs.getString(10);
    Ihzms=rs.getString(11);
    Itype=rs.getString(12);
    thi=rs.getString(13);
    Ixqyyhy=rs.getString(14);
    Ipeoprety=rs.getString(15);
    
    
    out.println("<tr><td>" + Inamenum + "</td><td>" + Ixqname + "</td>"  + 
            "<td>" + Ixqbelong +
            "</td><td>" + Ifrdb +
            "</td><td>" + Iszdy +
            "</td><td>" + Iclient +
            "</td><td>" + Igjz1 +
            "</td><td>" + Izjze +
            "</td><td>" + Ilingyu +
            "</td><td>" + Ihzms +
            "</td><td>" + Itype +
            "</td><td>" + thi +
            "</td><td>" + Ixqyyhy +
            "</td><td>" + Ipeoprety +
            "</td><td>" + Iresult+
//            "</td><td>" + xsreason+
            "</td><td><a href='del.jsp?Inamenum=" + Inamenum
            + "'>删除</a>&nbsp;&nbsp;&nbsp;</td><td><a href='saveedit.jsp?Inamenum=" + Inamenum + "'>修改</a></td></tr>");
    
    List list=new ArrayList();
    list.add(Inamenum);
    list.add(Ixqname);
    list.add(Ixqbelong);
    list.add(Ifrdb);
    list.add(Iszdy);
    list.add(Iclient);
    list.add(Igjz1);
    list.add(Izjze);
    list.add(Ilingyu);
    list.add(Ihzms);
    list.add(Itype);
    list.add(thi);
    list.add(Ixqyyhy);
    list.add(Ipeoprety);
    list.add(Iresult);
    
    
    JSONArray jsonlist=JSONArray.fromObject(list);
    System.out.println(jsonlist.toString());
    
}

//    sql2="select xsreason from xssh where Inamenum="+"'"+Inamenum+"'";
//    ResultSet rs2=db.executeQuery(sql2);
//    while(rs2.next()){
//            xsreason=rs2.getString(1);
//            System.out.println("xqmanage界面的xsreason："+xsreason);
//        }
rs.close();
db.close();
%>

  

</body>

<script type="text/javascript">
    var i=1;
    var first = 1;
    var hidde_me = document.getElementById("add");
    function insert_row(){
         if(i>=15){
             hidde_me.style.visibility="hidden";
             return;
         }
             
         i ++;
         R = tbl.insertRow(); //insertRow() 方法用于在表格中的指定位置插入一个新行。
         C = R.insertCell();  //insertCell() 方法用于在 HTML 表的一行的指定位置插入一个空的 <td> 元素。
         C.innerHTML = "<select style='50px;height:30px;fone-size:30px' id='type"+i+"' name='type"+i+"'>"+
         "<option value='and' >并且</option>"+
         "<option value='or' >或者</option>"+
         "<option value='not like' >不含</option>"+
         "</select>"+
         " <select style='165px;font-size:17px' id='select"+i+"' name='select"+i+"'>"+
         "<option value='Inamenum'>需求编号</option>"+
         "<option value='Ixqname'>需求名称</option>"+
         "<option value='Ixqbelong'>归口管理</option>"+
         "<option value='Iszdy'>所在地域</option>"+
         "<option value='Ifrdb'>法人代表</option>"+
         "<option value='Iclient'>联系人</option>"+
         "<option value='name'>机构属性</option>"+
         "<option value='name'>技术需求名称</option>"+
         "<option value='Igjz1'>关键字</option>"+
         "<option value='Izjze'>拟投入资金总额</option>"+
         "<option value='Ipeoprety'>技术需求解决方式</option>"+
         "<option value='Itype'>科技活动类型</option>"+
         "<option value='thi'>学科分类</option>"+
         "<option value='Ilingyu'>需求技术所属领域</option>"+
         "<option value='Iresult'>需求状态</option>"+
         "</select>"+" <input type='text' id='SearchBox"+i+"' name='SearchBox"+i+"' />"+
         " <select style='50px;height:30px;fone-size:30px' id='TYPE"+i+"' name='TYPE"+i+"'>"+
         "<option value='=' >精确</option>"+
         "<option value='like' >模糊</option>"+
         "</select> "+
         "<input type='button' value='-' onclick='deleteRow(this)'>" ;
    }
    function deleteRow(obj){
        if(i<=1){
            return;
        }
        // deleteRow() 方法用于从表格删除指定位置的行 是从0开始
        tbl.deleteRow(i-1);
        hidde_me.style.visibility="visible";
         i--;
    }
</script>
<script type="text/javascript">


function getData(){
    return json;
    }
</html>

View Code

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
    <style type="text/css">
        #table{
            font-size:20px;
        }
        
        input[type='text'] {
            font-size:20px;
             250px;
            height: 30px;
        }
        input[type='button'] {
            font-size:20px;
             50px;
            height: 30px;
        }
    </style>
<script type="text/javascript">
  
</script>
</head>
<body style="background-color:#EBC79E">
   
        <form action="mychaxun.jsp" method="post">
        <table name="tbl" id="tbl">
           <p>
            <tr>
                <td>
                    <input type="button" id="add" value="+" onclick="insert_row()" >
                  
                    <select id="select1" name="select1" style='165px;font-size:17px'>
                        <option value="Inamenum">需求编号</option>
                        <option value="Ixqname">需求名称</option>
                        <option value="Ixqbelong">归口管理</option>
                        <option value="Iszdy">所在地域</option>
                        <option value="Ifrdb">法人代表</option>
                        <option value="Iclient">联系人</option>
                        <option value="name">机构属性</option>
                        <option value="name">技术需求名称</option>
                        <option value="Igjz1">关键字</option>
                        <option value="Izjze">拟投入资金总额</option>
                        <option value="Ipeoprety">技术需求解决方式</option>
                        <option value="Itype">科技活动类型</option>
                        <option value="thi">学科分类</option>
                        <option value="Ilingyu">需求技术所属领域</option>
                        <option value="Iresult">需求状态</option>
                    </select>
                    <input type="text" id="SearchBox1" name="SearchBox1">
                    <select id="type1" name="TYPE1" style='50px;height:30px;fone-size:30px'>
                        <option value="=">精确</option>
                        <option value="like">模糊</option>
                    </select>
                </td>
            </tr></p>
        </table>
        <div id="SearchButton">
            <input type="submit" value="查询" style="50px;height:30px;font-size:17px;">
        </div>
        </form>
        
        <table id="table">
            <tr>
               <th>需求编号</th>
                 <th>需求名称</th>            
                <th>归口管理</th>
                <th>所在地域</th>
                <th>法人代表</th>
                <th>联系人</th>
                <th>机构属性</th>
                <th>技术需求名称</th>
                <th>关键字</th>
                <th>拟投入资金总额</th>
                <th>技术需求解决方式</th>
                <th>科技活动类型</th>
                <th>学科分类</th>
                <th>需求技术所属领域</th>        
                <th>需求状态</th>
            </tr>
        </table>
        
        
</body>
<script type="text/javascript">
    var i=1;
    var first = 1;
    var hidde_me = document.getElementById("add");
    function insert_row(){
         if(i>=15){
             hidde_me.style.visibility="hidden";
             return;
         }
             
         i ++;
         R = tbl.insertRow(); //insertRow() 方法用于在表格中的指定位置插入一个新行。
         C = R.insertCell();  //insertCell() 方法用于在 HTML 表的一行的指定位置插入一个空的 <td> 元素。
         C.innerHTML = "<select style='50px;height:30px;fone-size:30px' id='type"+i+"' name='type"+i+"'>"+
         "<option value='and' >并且</option>"+
         "<option value='or' >或者</option>"+
         "<option value='not like' >不含</option>"+
         "</select>"+
         " <select style='165px;font-size:17px' id='select"+i+"' name='select"+i+"'>"+
         "<option value='Inamenum'>需求编号</option>"+
         "<option value='Ixqname'>需求名称</option>"+
         "<option value='Ixqbelong'>归口管理</option>"+
         "<option value='Iszdy'>所在地域</option>"+
         "<option value='Ifrdb'>法人代表</option>"+
         "<option value='Iclient'>联系人</option>"+
         "<option value='name'>机构属性</option>"+
         "<option value='name'>技术需求名称</option>"+
         "<option value='Igjz1'>关键字</option>"+
         "<option value='Izjze'>拟投入资金总额</option>"+
         "<option value='Ipeoprety'>技术需求解决方式</option>"+
         "<option value='Itype'>科技活动类型</option>"+
         "<option value='thi'>学科分类</option>"+
         "<option value='Ilingyu'>需求技术所属领域</option>"+
         "<option value='Iresult'>需求状态</option>"+
         "</select>"+" <input type='text' id='SearchBox"+i+"' name='SearchBox"+i+"' />"+
         " <select style='50px;height:30px;fone-size:30px' id='TYPE"+i+"' name='TYPE"+i+"'>"+
         "<option value='=' >精确</option>"+
         "<option value='like' >模糊</option>"+
         "</select> "+
         "<input type='button' value='-' onclick='deleteRow(this)'>" ;
    }
    function deleteRow(obj){
        if(i<=1){
            return;
        }
        // deleteRow() 方法用于从表格删除指定位置的行 是从0开始
        tbl.deleteRow(i-1);
        hidde_me.style.visibility="visible";
         i--;
    }
</script>


</html>

View Code

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原文地址：https://www.cnblogs.com/zhjvvvvvv/p/14206658.html