demo

README.md

 # 651project
 
-651 project, business system for groceries 
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+
+.
+├── src
+│   ├── main
+│   │   ├── java
+│   │   │   └── com
+│   │   │       └── example
+│   │   │           └── freshonline
+│   │   │               ├── advice
+│   │   │               ├── constants
+│   │   │               ├── controller
+│   │   │               ├── dao
+│   │   │               ├── dto
+│   │   │               ├── enums
+│   │   │               ├── exception
+│   │   │               ├── interceptor
+│   │   │               ├── listener
+│   │   │               ├── model
+│   │   │               ├── schedule
+│   │   │               ├── service
+│   │   │               └── utils
+│   │   └── resources
+│   │       ├── mapper
+│   │       ├── static
+│   │       │   └── images
+│   │       └── templates
+│   └── test
+│       └── java
+│           └── com
+│               └── example
+│                   └── freshonline
+│                       └── controller
+└── target
+├── classes
+│   └── com
+│       └── example
+│           └── freshonline
+├── generated-sources
+│   └── annotations
+├── generated-test-sources
+│   └── test-annotations
+└── test-classes
+└── com
+└── example
+└── freshonline
+
+

src/main/java/com/example/freshonline/config/Config.java

+package com.example.freshonline.config;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+
+@Configuration
+public class Config implements WebMvcConfigurer {
+
+    // handler cors problem
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedOriginPatterns("*")
+                .allowCredentials(true)
+                .allowedMethods("*")
+                .maxAge(3600);
+    }
+}

src/main/java/com/example/freshonline/controller/HelloWorld.java

+package com.example.freshonline.controller;
+
+import com.alibaba.fastjson.JSONObject;
+import com.example.freshonline.model.User;
+import org.springframework.web.bind.annotation.*;
+
+import javax.xml.transform.Source;
+import java.util.Date;
+
+@RestController
+public class HelloWorld {
+
+
+    @GetMapping("/hello/{hello_id}")
+    public String h1(@PathVariable("hello_id") Integer id, @RequestParam("hello_name") String xxx){
+        System.out.println("h1:  hello_id="+ id+ "-----hello_name="+xxx);
+        return "h1:  hello_id="+ id+ "-----hello_name="+xxx;
+    }
+
+    @GetMapping("/hello/{user_id}/orders")
+    public String h2(@PathVariable("user_id") String id,
+                     @RequestParam("pagesize") Integer pagesize,
+                     @RequestParam("pagenum") Integer pagenum,
+                     @RequestParam("start") Date start_date,
+                     @RequestParam("end") Date end){
+        return "h2:   user_id="+ id+
+                "-----pagesize="+pagesize+
+                "----pagenum="+pagenum+
+                "----start="+start_date.toString()+
+                "----end="+end.toString();
+    }
+
+    @PostMapping("/hello/user")
+    public String h3(@RequestBody JSONObject req){
+        User user = req.toJavaObject(User.class);
+        return "h3:   "+ user.toString();
+    }
+
+
+}

src/main/java/com/example/freshonline/model/User.java

+package com.example.freshonline.model;
+
+
+import lombok.Data;
+
+@Data
+public class User {
+
+    private Integer id;
+
+    private String name;
+
+    private String pwd;
+}