Struts2 JSONObject的使用
一、jar包
使用之前必须引入所需要的jar包,这里包括Struts2和JSONObject各自所必须的
Struts2:
commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-lang-2.3.jar
commons-logging-1.0.4.jar
freemarker-2.3.13.jar
ognl-2.6.11.jar
struts2-core-2.1.6.jar
xwork-2.1.2.jar
JSONObject:
commons-beanutils-1.7.0.jar
commons-collections-3.2.jar
ezmorph-1.0.3.jar
json-lib-2.1.jar
PS: 本例Struts2版本为2.1.6,以上所有jar包在struts-2.1.6\lib中都可以找到,
如果以上jar包是东拼西凑的 特别是JSONObject,有可能会因jar包兼容性问题而报错。
二、前台代码
<body> <form id="myform"> <table> <tr> <td>姓名:</td> <td> <input type="text" name="name" /> </td> </tr> <tr> <td>性别:</td> <td> <input type="radio" name="sex" value="1"> 男 <input type="radio" name="sex" value="0"> 女 </td> </tr> <tr> <td>年龄:</td> <td> <select name="age"> <option value="20">20</option> <option value="21">21</option> <option value="22">22</option> </select> </td> </tr> <tr> <td colspan="2"> <input type="button" id="ajaxBtn" value="提交" /> </td> </tr> </table> </form> <div id="msg"></div> </body>
<script type="text/javascript">
$(function() {
$("#ajaxBtn").click(function() {
var params = $("#myform").serialize();
$.ajax( {
type : "POST",
dataType: "json",
url : "RegisterAction.action",
data : params,
success : function(msg) {
if(msg.success == true){
$("#msg").html("您提交的信息为,姓名: "+msg.name+
", 性别："+msg.sex+", 年龄："+msg.age);
alert("success");
}else{
alert("error");
}
},
error : function(){
alert("error");
}
});
})
})
</script>
三、后台
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionContext;
public class RegisterAction {
private String name;
private String sex;
private String age;
public String register() {
ActionContext ac = ActionContext.getContext();
HttpServletResponse response = (HttpServletResponse) ac.get(ServletActionContext.HTTP_RESPONSE);
response.setCharacterEncoding("utf-8");
PrintWriter out;
try {
out = response.getWriter();
JSONObject json=new JSONObject();
json.put("success", true);
json.put("name", name);
json.put("sex", sex==null?"未知":("1".equals(sex)?"男":"女"));
json.put("age", age);
out.write(json.toString());
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
}
四、Struts配置
<struts> <package name="build" extends="struts-default"> <action name="RegisterAction" method="register" class="com.home.RegisterAction"> </action> </package> </struts>
如下图：
作者：itmyhome
出处：http://blog.csdn.net/itmyhome1990/article/details/41943291
源码：download