数据库
CREATE DATABASE crmweb;
CREATE TABLE `customerstatus` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '序号',
`customerstatus` varchar(100) DEFAULT NULL COMMENT '客户状态',
`customerdescription` varchar(100) DEFAULT NULL COMMENT '客户描述',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;
C3P0
<?xml version="1.0" encoding="UTF-8"?>
<c3p0-config>
<named-config name="webs001"> <!-- 自定义配置 -->
<!-- mysql驱动 -->
<property name="driverClass">com.mysql.jdbc.Driver</property>
<!-- 数据库连接 -->
<property name="jdbcUrl">jdbc:mysql://localhost:3306/crmweb?characterEncoding=utf-8</property>
<!-- 数据库用户名 -->
<property name="user">root</property>
<!-- 数据库密码 -->
<property name="password">mysql</property>
<!-- 初始化连接池大小 -->
<property name="initialPoolSize">10</property>
<!-- 最大空闲时间(秒) - 若为0则永不丢弃 -->
<property name="maxIdleTime">30</property>
<!--每40秒检查所有连接池中的空闲连接。Default: 0 -->
<property name="idleConnectionTestPeriod">40</property>
<!-- 连接池中保留的最大连接数 -->
<property name="maxPoolSize">100</property>
<!-- 最小保留连接数 -->
<property name="minPoolSize">10</property>
<!-- 最大连接数 -->
<property name="maxStatements">200</property>
</named-config>
</c3p0-config>
WEB.xml
<!-- Customerstatus查询 -->
<servlet-mapping>
<servlet-name>Customerstatus</servlet-name>
<url-pattern>/Customerstatus/ajxsel</url-pattern>
</servlet-mapping>
<!-- Customerstatus增加 -->
<servlet-mapping>
<servlet-name>Customerstatus</servlet-name>
<url-pattern>/Customerstatus/ajxadd</url-pattern>
</servlet-mapping>
<!-- Customerstatus删除 -->
<servlet-mapping>
<servlet-name>Customerstatus</servlet-name>
<url-pattern>/Customerstatus/ajxdel</url-pattern>
</servlet-mapping>
Customerstatus.jsp页面
<script type="text/javascript" src="js/jquery-3.2.1.min.js" ></script>
<div class="a">
<label>请输入客户状态:</label>
<input type="text" class="inp" />
<input type="button" value="查询" class="inp2"/>
<a href="customerstatustoadd.jsp">
<input type="button" value="添加" class="inp3"/>
</a>
</div>
<div class="d"></div>
<div class="b">
<table>
<tr style="background: #cdeaf9;"><th class="widt">序号</th><th class="width1">客户状态</th><th class="width">状态描述</th><th class="wid">基本操作</th></tr>
<tbody id="td">
</tbody>
<%-- <c:forEach var="v" items="${list }" varStatus="status" >
<tr><td class="widt">${status.index+1}</td>
<td class="width1">${v.customerstatus }</td>
<td class="width">${v.customerdescription }</td>
<td class="wid">
<a href="Customerstatus/delete?id=${v.id }">
<img src="images/del.gif"/>
删除</a>
</td>
</tr>
</c:forEach> --%>
</table>
</div>
<div class="c">
<span class="if">共有3条记录，当前第1/1页</span>
<img class="img1" src="images/first.gif" />
<img src="images/back.gif" />
<img src="images/next.gif" />
<img src="images/last.gif" />
<font>转到第
<input type="text" class="else"/>
页</font>
<img src="images/go.gif" />
</div>
<script type="text/javascript">
$(".inp2").click(function(){
var s=$(".inp").val();
$("tr").each(function(i,x){
if($(x).children().eq(1).text().indexOf(s)<0){
$(x).hide();
}else{$(x).show();}
});
});
$(function(){
$("#td").html("");
sele();
})
function sele(){
$.ajax({
type:"post",
url:"Customerstatus/ajxsel",
data:"",
dataType:"json",
success:function(data){
var html="";
$.each(data,function(i,v){
html+="<tr><td>"+v.id+"</td><td>"+v.customerstatus+"</td><td>"+v.customerdescription+"</td><td><img src='images/del.gif'/><span onclick='dele("+v.id+")'>删除</span></td></tr>"
})
$("#td").html(html);
}
})
}
function dele(v){
var r=confirm("是否确认删除？");
if(!r){return;}
$.ajax({
type:"post",
url:"Customerstatus/ajxdel",
data:{id:v},
dataType:"json",
success:function(data){
if(data.msg){
sele();
}
}
})
}
</script>
Customerstatustoadd.jsp页面
<script type="text/javascript" src="js/jquery-3.2.1.min.js" ></script>
<body>
<form id="asdasf">
<table>
<tr><td>
<span>请输入客户类型的详细信息</span>
</td></tr>
<tr><td>
<font>客户状态名称:</font>
<input type="text" name="name" class="a" />
</td></tr>
<tr><td>
<font>客户状态描述:</font>
<input type="text" name="description" class="a" />
</td></tr>
<tr><td>
<input type="button" value="提交" class="b" id="but"/>
<input type="button" value="返回" class="b"/>
</td></tr>
</table>
</form>
</body>
<script type="text/javascript">
$("#but").click(function(){
$.ajax({
type:"post",
url:"Customerstatus/ajxadd",
data:$("#asdasf").serialize(),
dateType:"json",
success: function(data){
window.location.href="customerstatus.jsp"
}
})
});
</script>
Customerstatus.java
protected void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Connection connection = null;
String url = request.getServletPath();
if (url.contains("Customerstatus/ajxsel")) {
try {
connection = DButil.getConn();
String sql = "SELECT * FROM customerstatus";
PreparedStatement p = connection.prepareStatement(sql);
ResultSet set = p.executeQuery();
List<ProCustomerstatus> list = new ArrayList<ProCustomerstatus>();
while(set.next()){
ProCustomerstatus v = new ProCustomerstatus();
v.setId(set.getInt("id"));
v.setCustomerstatus(set.getString("customerstatus"));
v.setCustomerdescription(set.getString("customerdescription"));
list.add(v);
}
p.close();
DButil.cClose(connection);
System.out.println(JSONArray.fromObject(list));
response.setCharacterEncoding("utf-8");
response.getWriter().write(JSONArray.fromObject(list).toString());
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if (url.contains("Customerstatus/ajxdel")) {
int id = Integer.parseInt(request.getParameter("id"));
String sql = "DELETE FROM customerstatus WHERE id=?";
try {
connection = DButil.getConn();
PreparedStatement preparedStatement = connection.prepareStatement(sql);
preparedStatement.setInt(1, id);
preparedStatement.execute();
preparedStatement.close();DButil.cClose(connection);
boolean msg = true;
String json = "{msg:"+msg+"}";
System.out.println(JSONObject.fromObject(json));
response.getWriter().write(JSONObject.fromObject(json).toString());
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if (url.contains("Customerstatus/ajxadd")) {
request.setCharacterEncoding("utf-8");
String name = request.getParameter("name");
String description =request.getParameter("description");
response.setContentType("text/html;charset=utf-8");
try {
connection = DButil.getConn();
String sql = "INSERT INTO customerstatus(customerstatus,customerdescription)VALUES(?,?)";
PreparedStatement p = connection.prepareStatement(sql);
p.setString(1, name);
p.setString(2, description);
p.execute();
p.close();
DButil.cClose(connection);
boolean b = true;
String json = "{b:"+b+"}";
System.out.println(JSONObject.fromObject(json).toString());
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}