九九热这里有精品,欧美在线网站,污污网站在线观看

struts2中用ognl訪問普通類的構造方法

public class User implements Serializable{

/**
*
*/
private static final long serialVersionUID = 1L;

private String name;
public User(){
System.out.println("===============");
}
public User(String name){
this.name = name;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

@Override
public String toString() {
return "user="+this.name;
}

}

<s:property value="new User('name')"/>

posted @ 2013-04-15 22:54 楊軍威閱讀(1278) | 評論 (0) | 編輯收藏

struts2用ognl訪問普通類的靜態屬性和靜態方法

public class Test {

public static String NAME = "nametom";
public static String test(){
return "testtom";
}
}

在struts.xml配置文件中加<constant name="struts.ognl.allowStaticMethodAccess" value="true"></constant>
<s:property value="@Test@test()"/>
<s:property value="@Test@NAME"/>

posted @ 2013-04-15 22:44 楊軍威閱讀(330) | 評論 (0) | 編輯收藏

struts2中ognl直接訪問action中的方法

public class UserAction extends ActionSupport{

/**
*
*/
private static final long serialVersionUID = 1L;
  public String mm(){
  return "mm";

}
}
   <s:property value="mm()"/>

posted @ 2013-04-15 22:23 楊軍威閱讀(154) | 評論 (0) | 編輯收藏

struts2中ognl在視圖中訪問對象的方法

public class User implements Serializable{

/**
*
*/
private static final long serialVersionUID = 1L;

private String name;
public User(){
System.out.println("===============");
}
public User(String name){
this.name = name;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

@Override
public String toString() {
return "user="+this.name;
}

}

public class UserAction extends ActionSupport{

/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
private User user;
private Cat cat;

@Override
public String execute() throws Exception {
// System.out.println(cat.getFriend().getName());
  return ActionSupport.SUCCESS;

}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}
public User getUser() {
  return user;
}
public void setUser(User user) {
  this.user = user;
}
public Cat getCat() {
  return cat;
}
public void setCat(Cat cat) {
  this.cat = cat;
}

}

<s:property value="user.toString()"/>

posted @ 2013-04-15 22:15 楊軍威閱讀(184) | 評論 (0) | 編輯收藏

struts2控制反轉時創建對象一定要有參數是空的實體類的構造方法

public class User implements Serializable{

/**
*
*/
private static final long serialVersionUID = 1L;

private String name;
public User(){
System.out.println("========空的構造方法=必須有======");
}
public User(String name){
this.name = name;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

}

public class UserAction extends ActionSupport{

/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
private User user;

@Override
public String execute() throws Exception {
  System.out.println(user.getName());
  return ActionSupport.SUCCESS;

}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}
public User getUser() {
  return user;
}
public void setUser(User user) {
  this.user = user;
}

}

posted @ 2013-04-15 21:49 楊軍威閱讀(549) | 評論 (0) | 編輯收藏

struts2驗證框架的使用

<body>
   <s:form action="user/tologin.action" method="post">
    <s:textarea name="id"></s:textarea>
    <s:password name="user.password"></s:password>
    <s:textfield name="user.name" label="ddddd" > </s:textfield>
    <s:submit value="提交" method="login"></s:submit>
    <s:submit value="打印" method="print"></s:submit>
   </s:form>
</body>
驗證框架的命名規則是Action類名字-action的bean名字-validation.xml，這個驗證文件需要放在需要驗證的.class文件同一目錄下
例如UserAction-tologin-validation.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC
       "-//Apache Struts//XWork Validator 1.0.2//EN"
       "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">
       <validators>
           <field name="id">
               <field-validator type="int">
                   <param name="min">10</param>
                   <param name="max">20</param>
                   <message>必須是整數</message>
               </field-validator>
           </field>

           <field name="user.name">
               <field-validator type="requiredstring">
                   <message>name必須填寫</message>
               </field-validator>
           </field>
       </validators>

在struts-xml中的配置
<action name="tologin" class="UserAction" >
               <result>/WEB-INF/user/list.jsp</result>
               <result name="input">/WEB-INF/user/user.jsp</result>
           </action>

posted @ 2013-04-15 15:05 楊軍威閱讀(142) | 評論 (0) | 編輯收藏

struts2一個表單多種提交ognl

<body>
   <s:form action="user/tologin.action" method="post">
    <s:textarea name="id"></s:textarea>
    <s:password name="user.password"></s:password>
    <s:textfield name="user.name"></s:textfield>
    <s:submit value="提交" method="login"></s:submit>
    <s:submit value="打印" method="print"></s:submit>
   </s:form>
</body>
<action name="tologin" class="UserAction" >
               <result>/WEB-INF/user/list.jsp</result>
           </action>

public class UserAction extends ActionSupport{

   private static final long serialVersionUID = 1L;

   private User user;
   private String id;

   @Override
   public String execute() throws Exception {

       return ActionSupport.SUCCESS;
   }

   public String login(){

       return ActionSupport.SUCCESS;
   }

   public String print(){
       System.out.println(user.getName());
       System.out.println(user.getPassword());
       System.out.println(id);
       return ActionSupport.SUCCESS;
   }


   public User getUser() {
       return user;
   }

   public void setUser(User user) {
       this.user = user;
   }

   public String getId() {
       return id;
   }

   public void setId(String id) {
       this.id = id;
   }


}

posted @ 2013-04-15 14:07 楊軍威閱讀(176) | 評論 (0) | 編輯收藏

struts2重定向到jsp傳值

<a href="hello?name=1">重定向傳參數</a>
<package name="default" namespace="/" extends="struts-default">
<default-action-ref name="hello"></default-action-ref>
  <action name="hello" class="UserAction">
   <result type="redirect">/index2.jsp?t=${name}</result>
  </action>
</package>

public class UserAction extends ActionSupport{

/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
@Override
public String execute() throws Exception {
  System.out.println(name);
  return ActionSupport.SUCCESS;

}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}

}
<s:property value="#parameters.t"/>

posted @ 2013-04-14 21:11 楊軍威閱讀(708) | 評論 (0) | 編輯收藏

struts2中四種實現request，session，application的方法

第一種
public class UserAction extends ActionSupport{

/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
private Map session;
private Map request;
private Map application;
@Override
public String execute() throws Exception {
  session = ActionContext.getContext().getSession();
  request = (Map) ActionContext.getContext().get("request");
  application = ActionContext.getContext().getApplication();
  session.put("sk", "sv");
  request.put("rk", "rv");
  application.put("ak", "av");
  System.out.println(name);
  return ActionSupport.SUCCESS;

}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}

}

第二種

public class DepAction extends ActionSupport implements RequestAware,SessionAware,ApplicationAware{

private Map<String, Object> request;
private Map<String, Object> session;
private Map<String, Object> application;

public void setRequest(Map<String, Object> request) {
this.request = request;

}

public void setSession(Map<String, Object> session) {
this.session = session;

}

public void setApplication(Map<String, Object> application) {
this.application = application;

}

}

第三種

public class CarAction implements ServletRequestAware{
private HttpServletRequest request;
private HttpSession session;
private ServletContext application;

public void setServletRequest(HttpServletRequest request) {
  this.request = request;
  this.session = request.getSession();
  this.application = session.getServletContext();

}

}

第四種

public class HomeAction extends ActionSupport{

private HttpServletRequest request;
private HttpSession session;
private ServletContext application;

public HomeAction (){
  request = ServletActionContext.getRequest();
  session = request.getSession();
  application = session.getServletContext();
}

}

posted @ 2013-04-13 09:49 楊軍威閱讀(175) | 評論 (0) | 編輯收藏

struts2的標簽ognl

摘要: Struts2常用標簽總結一介紹 1．Struts2的作用 Struts2標簽庫提供了主題、模板支持，極大地簡化了視圖頁面的編寫，而且，struts2的主題、模板都提供了很好的擴展性。實現了更好的代碼復用。Struts2允許在頁面中使用自定義組件，這完全能滿足項目中頁面顯示復雜，多變的需求。 Struts2的標簽庫有一個巨大的改進之處，struts2標簽庫的標簽不依賴于任何... 閱讀全文

posted @ 2013-04-12 17:07 楊軍威閱讀(234) | 評論 (0) | 編輯收藏

java學習

struts2中用ognl訪問普通類的構造方法

struts2用ognl訪問普通類的靜態屬性和靜態方法

struts2中ognl直接訪問action中的方法

struts2中ognl在視圖中訪問對象的方法

struts2控制反轉時創建對象一定要有參數是空的實體類的構造方法

struts2驗證框架的使用

struts2一個表單多種提交ognl

struts2重定向到jsp傳值

struts2中四種實現request，session，application的方法

struts2的標簽ognl

導航

統計

常用鏈接

留言簿

隨筆檔案

搜索

最新評論

閱讀排行榜

評論排行榜