Question

我在托管bean中使用@SessionScoped，它给了我错误。

@SessionScoped无法解析为类型

我错过了什么？

相关代码：

package javaeetutorial.guessnumber;

import java.io.Serializable;
import java.util.Random;

@Named
@SessionScoped
public class UserNumberBean implements Serializable {
    // Do stuff.
}

Answer 1

在下面添加导入

import javax.enterprise.context.RequestScoped;

将来您可以随时使用IDE来解决导入问题，在eclipse中使用ctrl + shift + o。

希望有所帮助。

Answer 2

改为添加Faces库：

with open('a.txt') as r: #open source file and assign it to variable r
    r = r.read().split('@@@@@') #read the contents and break it into list of elements separated by '@@@@@'
    new = [item.strip() for item in r if item] #clean empty rows from the list

for i, item in enumerate(new): #iterate trough new list and assign a number to each iteration starting with 0 (default)
    with open('a%s.txt' % i+1, 'w') as w: #create new file for each element from the list that will be named 'a' + 'value of i + 1' + '.txt'
        w.write(item) #writing contents of current element into file

@SessionScoped无法解析为某个类型

2 个答案: