Struts使用Json插件，两种配置方法
第一种：使用配置文件
1>我们新建一个配置文件struts-ajax.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="ajax-json-plugin" extends="json-default"> <action name="employeeJson" class="com.kaishengit.action.AjaxAction"> <result name="success" type="json"> <param name="root">employeeList</param> <param name="noCache">true</param> <param name="enableGZIP">true</param> <param name="excludeNullProperties">true</param> </result> </action> </package> </struts>
2>我们将此配置文件导入主配置文件struts.xml中
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN" "http://struts.apache.org/dtds/struts-2.1.7.dtd"> <struts> <include file="struts-ajax.xml"></include> <package name="myPackage" extends="struts-default"> </package> </struts>
3>客户端index.jsp,我使用的是Jquery结合Json
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>json</title>
</head>
<body>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$.get("employeeJson.action",function(json){
alert(json);
});
});
</script>
</body>
</html>
4>服务端代码
package com.kaishengit.action;
import java.util.ArrayList;
import java.util.List;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import com.kaishengit.service.EmployeeService;
public class AjaxAction {
private EmployeeService employeeService;
private List<Employee> employeeList;
public String execute(){
employeeList = employeeService.findAllByJson();
return "success";
}
public List<Employee> getEmployeeList() {
return employeeList;
}
public void setEmployeeList(List<Employee> employeeList) {
this.employeeList = employeeList;
}
@Autowired
public void setEmployeeService(EmployeeService employeeService) {
this.employeeService = employeeService;
}
}
这样就ok啦
第二种：使用annotation(注解)
1>我们新建一个配置文件struts-ajax.xml,把其中Action节点去除
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="ajax-json-plugin" extends="json-default"/> </struts>
2>我们将此配置文件导入主配置文件struts.xml中(跟第一种一样)
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN" "http://struts.apache.org/dtds/struts-2.1.7.dtd"> <struts> <include file="struts-ajax.xml"></include> <package name="myPackage" extends="struts-default"> </package> </struts>
3>客户端index.jsp,我使用的是Jquery结合Json(跟第一种一样)
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>json</title>
</head>
<body>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$.get("employeeJson.action",function(json){
alert(json);
});
});
</script>
</body>
</html>
4>服务端代码，使用annotation(注解)
package com.kaishengit.action;
import java.util.ArrayList;
import java.util.List;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import com.kaishengit.service.EmployeeService;
@ParentPackage(value="ajax-json-plugin")
public class AjaxAction {
private EmployeeService employeeService;
private List<Employee> employeeList;
@Action(value="employeeJson",results={@Result(name="success",params={"root","employeeList","noCache","true","enableGZIP","true","excludeNullProperties","true"},type="json")})
public String execute(){
employeeList = employeeService.findAllByJson();
return "success";
}
public List<Employee> getEmployeeList() {
return employeeList;
}
public void setEmployeeList(List<Employee> employeeList) {
this.employeeList = employeeList;
}
@Autowired
public void setEmployeeService(EmployeeService employeeService) {
this.employeeService = employeeService;
}
}
ok!