ssh 依赖注入

Struts2 action类里的
public class PeopleAction extends ActionSupport {
private PeopleBiz pb;
public String getAll(){
List<People> peoples=pb.getAll();//pb为空
System.out.println("ccccccccccccccccccccccccc");
return SUCCESS;
}
public PeopleBiz getPb() {
return pb;
}
public void setPb(PeopleBiz pb) {
this.pb = pb;
}
}