小编Roo*_*zbe的帖子

我提出一个共同的项目聆听异常和使用@ControllerAdvice与@ExceptionHandler

@ControllerAdvice(annotations = RestController.class)
public class RestResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {

     @ExceptionHandler({Exception.class})
     @ResponseStatus(value = HttpStatus.NOT_FOUND)
     @ResponseBody
     public ResponseEntity<ErrorResponse> notFound(Exception ex) {
         return new ResponseEntity<>(
            new ErrorResponse(ex.getMessage(), 404, "My Custom Message"), HttpStatus.NOT_FOUND);
     }
}

没有任何@SpringBootApplication主要的方法来作为依赖添加到我的另一个项目中。我的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.test</groupId>
<artifactId>spring-commons-rest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>spring-commons-rest</name>
<description>for Listening Exceptions</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.0.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency> …

我有一个List<report>在Java的,我想将其更改为List<graph>

万一

class report {
   String date;
   String type;
   String count;
}

class graph{
   String date;
   String numberA;
   String numberB;
   String numberC;
}

例如我有:

date    type  count     change it into >  date   numberA  numberB  numberC
03/21   A     8017                        03/21   8017     5019      0
03/21   B     5019                        03/22   5001     0         8870                          
03/22   A     5001                        03/23   0        8305      0  
03/22   C     8870                        03/24   1552     2351      8221  
03/23   B     8305
03/24   A     1552                          
03/24   B     2351                          
03/24   C     8221 …