从Java Controller启动html页面时，添加查询字符串值

Question

我有一个HTML页面，它是在发布后从java控制器启动的，我想在url ex:(localhost:8000/gdata？id=11(中附加一个查询字符串值。这能做到吗？这是我的控制器代码：

package com.sa.example;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
//import org.springframework.web.bind.annotation.RequestParam;
import com.sentinel.advisor.GData;
import com.sentinel.advisor.GDataJdbcRepository;
@Controller
public class GDataController {
@Autowired
GDataJdbcRepository repository;
@GetMapping("/gdata")
public String gDataForm(Model model) {
return "gData";
}
@PostMapping("/gdata")
public String gDataSubmit(@ModelAttribute GData gData) {
String returnString = repository.insert(gData);
//returnString should be returned in the url as a query string
return "result";
}
}

Answer 1

您可以使用重定向(最好的做法是在发布后重定向，而不考虑参见-https://en.wikipedia.org/wiki/Post/Redirect/Get.

Spring的重定向视图：

https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/servlet/view/RedirectView.html

类似于：

@Controller
public class GDataController {
@Autowired
GDataJdbcRepository repository;
@GetMapping("/gdata")
public String gDataForm(Model model) {
return "gData";
}
@PostMapping("/gdata")
public RedirectView gDataSubmit(@ModelAttribute GData gData) {
String returnString = repository.insert(gData);
return new RedirectView("/sucess?returnString=" + returnString, true);
}
@GetMapping("/success")
public String getResultPage(@RequestParam("returnString")String returnString){
return "result";
}
}