springclouddemo5.3 service provider -user

** Learn from the station b springcloud project, now summarize the summary removal of a small error appearing in the video, some of the error-prone places were reminded

b outbound links: https://www.bilibili.com/video/av55629580?p=1
profile link:
https://pan.baidu.com/s/1o0Aju3IydKA15Vo1pP4z5w
extraction code: 21ru

On a link:
https://blog.csdn.net/qq_40893824/article/details/103618769
next section link:
https://blog.csdn.net/qq_40893824/article/details/103628646

The following list summarizes:
client / UserHandler → User / Entity new MenuVO, copy to client / entity → modify the client / UserHandler → check codes in findAll

Now go to page features user client calls the
implementation details:
Manage Users:
1. Because to use the page to show user information, modify the client / controller / UserHandler.java code for
it to @ @RestController in line 10 will UserHandler.java Controller

2. Delete update the code, findById Code

3. Modify deleteById same operation code and save the code :()
void change String, plus return "the redirect: / User / the redirect / user_manage";
@DeleteMapping change @GetMapping

    /*删*/
    @GetMapping("/deleteById/{id}")
    public String deleteById(@PathVariable("id")long id){
    	user.setRegisterdate(new Date());//注册时间系统给出
        userFeign.deleteById(id);
        return "redirect:/user/redirect/user_manage";
    }

Add 4.findAll @ResponseBody
user_manage.html there th label, so UserHandler redirect plus background map (and in the same MenuHandler) in the following code:

    @GetMapping("/redirect/{location}")
    public String redirect(@PathVariable("location")String location){
        return location;
    }

5. Because findAll returned List <> view page can not be resolved, so to user / entity new UserVO, tagging:

package com.southwind.entity;

import lombok.Data;

import java.util.List;

@Data
public class UserVO {
    private int code;
    private String msg;
    private int count;
    private List<User> data;
}

6. UserVO copied to the client / entity, and then read the code findAll:
List <the User> to UserVO, GetMapping path to the "/ findAll", 2 th @PathVariable to @RequestParam:

    /*查*/
    @GetMapping("/findAll")
    @ResponseBody
    public UserVO findAll(@RequestParam("page") int page , @RequestParam("limit") int limit){
        int  index = (page - 1)*limit;
        UserVO userVO = new UserVO();
        userVO.setCode(0);;
        userVO.setMsg("");
        userVO.setCount(userFeign.count());
        userVO.setData(userFeign.findAll(index, limit));
        return userVO;
    }

Now UserHandler code:

package com.southwind.controller;

import com.southwind.entity.User;
import com.southwind.entity.UserVO;
import com.southwind.feign.UserFeign;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.util.Date;


@Controller
@RequestMapping("/user")
public class UserHandler {

    @Autowired
    private UserFeign userFeign;

    /*增*/
    @PostMapping("/save")
    public String save(User user){
        user.setRegisterdate(new Date());//注册时间系统给出
        userFeign.save(user);
        return "redirect:/user/redirect/user_manage";
    }

    /*删*/
    @GetMapping("/deleteById/{id}")
    public String deleteById(@PathVariable("id")long id){
        userFeign.deleteById(id);
        return "redirect:/user/redirect/user_manage";
    }

    /*查*/
    @GetMapping("/findAll")
    @ResponseBody
    public UserVO findAll(@RequestParam("page") int page , @RequestParam("limit") int limit){
        int  index = (page - 1)*limit;
        UserVO userVO = new UserVO();
        userVO.setCode(0);;
        userVO.setMsg("");
        userVO.setCount(userFeign.count());
        userVO.setData(userFeign.findAll(index, limit));
        return userVO;
    }


    @GetMapping("/count")
    public int count(){
        return userFeign.count();
    }

    @GetMapping("/redirect/{location}")
    public String redirect(@PathVariable("location")String location){
        return location;
    }
}

Check
7. Go to http: // localhost: 8030 / user / redirect / user_manage

success!

Add User:
1.manage_add have th label, continue to use the redirect background mapping
enter http: // localhost: 8030 / user / redirect / user_add



added successfully!

Verify Delete: Click Delete:

Xiao Ming was successfully deleted!

On a link:
https://blog.csdn.net/qq_40893824/article/details/103618769
next section link:
https://blog.csdn.net/qq_40893824/article/details/103628646