[英]How to autowire services outside of the constructor?
是否可以將@Autowired
添加到一個類中,並且還可以向不使用這些自動裝配類的類中添加一個構造函數?
例:
public class MyJob {
@Autowired
private MyService1 serv1;
@Autowired
private MyService2 serv2;
public MyJob(String filename) {
this.filename = filename;
}
}
在這里,我想把MyService1
和MyService2
@Bean
理所當然的,然后使用構造函數初始化那些@Bean
類:
@Bean
public getMyJob1() {
return new MyJob("test1");
}
@Bean
public getMyJob2() {
return new MyJob("test2");
}
那可能嗎?
我認為最好的方法是為MyJob的實例創建一個Factory:
public class MyJobFactory {
private MyService1 serv1;
private MyService2 serv2;
@Autowired
public MyJobFactory(MyService1 serv1, MyService2 serv2) {
this.serv1 = serv1;
this.serv2 = serv2;
}
public MyJob myJob(String filename) {
return new MyJob(filename, serv1, serv2);
}
}
我只對filename
屬性使用setter:
public class MyJob {
@Autowired
private MyService1 serv1;
@Autowired
private MyService2 serv2;
private String filename;
public void setFilename(String filename) {
this.filename = filename;
}
// getter for filename
}
然后,在工廠課程中:
@Bean
public MyJob getMyJob1() {
MyJob job = new MyJob();
job.setFilename("test1");
return job;
}
@Bean
public MyJob getMyJob2() {
MyJob job = new MyJob();
job.setFilename("test2");
return job;
}
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