在一个RandomAction中生成一个验证码后通过
ActionContext.getContext().getSession().put("random", rdnu.getString());
将生成的验证码字符串保存到session里，供用户登录或注册时验证是否输入正确
在RandomAction中使用
ActionContext.getContext().getSession().get("random")，可以正常获得session中值
但在另一个LoginAction中，同样的方法，答应出来的确是null;
请问如何解决。
代码如下：
RandomAction.java
- Java code
import java.io.ByteArrayInputStream;import Web.RandomNumUtil;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class RandomAction extends ActionSupport{ /** * */ private static final long serialVersionUID = 1L; private ByteArrayInputStream inputStream; public String execute() throws Exception{ RandomNumUtil rdnu=RandomNumUtil.Instance(); this.setInputStream(rdnu.getImage()); ActionContext.getContext().getSession().put("random", rdnu.getString()); System.out.println("生成验证码："+rdnu.getString()); System.out.println("获得验证码："+ActionContext.getContext().getSession().get("random")); return SUCCESS; } public void setInputStream(ByteArrayInputStream inputStream) { this.inputStream = inputStream; } public ByteArrayInputStream getInputStream() { return inputStream; }}RandomNumUtil.java(验证码生成方法类)
- Java code
import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.image.BufferedImage;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.util.Random;import javax.imageio.ImageIO;import javax.imageio.stream.ImageOutputStream;public class RandomNumUtil { privateprovider="java:MSG">LoginAction.java
- Java code
import com.ccniit.service.UserManager;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
*
*/
private String username;
private String password1;
private String vercode;
public String getVercode() {
return vercode;
}
public void setVercode(String vercode) {
this.vercode = vercode;
}
private String msg;
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
protected UserManager mgr;
public void setMgr(UserManager mgr) {
this.mgr = mgr;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword1() {
return password1;
}
public void setPassword1(String password1) {
this.password1 = password1;
}
public String showReg() throws Exception {
return SUCCESS;
}
public String login() throws Exception {
String ver2=(String) ActionContext.getContext().getSession().get("random");
System.out.println("random:" + ver2);
System.out.println("用户输入：" + getVercode());
if (getVercode().equals(getVercode())) {
if (mgr.login(getUsername(), getPassword1()) > 0) {
System.out.println("SUCCESS");
return SUCCESS;
} else {