更正您的应用程序的类路径，使其包含类 org.springframework.boot.autoconfigure.http.HttpMessageConverter 的兼容版本

Question

更正应用程序的类路径，使其包含类 org.springframework.boot.autoconfigure.http.HttpMessageConverters 和 org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter

的兼容版本

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APPLICATION FAILED TO START
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Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.boot.autoconfigure.http.HttpMessageConverters.configurePartConverters(HttpMessageConverters.java:156)

The following method did not exist:

    org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter.getPartConverters()Ljava/util/List;

The calling method's class, org.springframework.boot.autoconfigure.http.HttpMessageConverters, was loaded from the following location:

    jar:file:/C:/Users/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.6.3/spring-boot-autoconfigure-2.6.3.jar!/org/springframework/boot/autoconfigure/http/HttpMessageConverters.class

The called method's class, org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter, is available from the following locations:

    jar:file:/C:/Users/.m2/repository/org/springframework/spring-web/5.2.3.RELEASE/spring-web-5.2.3.RELEASE.jar!/org/springframework/http/converter/support/AllEncompassingFormHttpMessageConverter.class

The called method's class hierarchy was loaded from the following locations:

    org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter: file:/C:/Users/.m2/repository/org/springframework/spring-web/5.2.3.RELEASE/spring-web-5.2.3.RELEASE.jar
    org.springframework.http.converter.FormHttpMessageConverter: file:/C:/Users/.m2/repository/org/springframework/spring-web/5.2.3.RELEASE/spring-web-5.2.3.RELEASE.jar

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.2.3.RELEASE</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

添加 spring-web 依赖项后显示此错误

Answer 1

如您所见，从 Spring 5.2 添加 spring-web 将失败。这是因为 Spring Boot 2.6.x 使用 Spring 5.3。永远不要混合来自不同版本框架的模块。不管是哪个框架，因为那会导致奇怪的错误、不兼容错误（像这个）等等...

要修复，请将 spring-web 依赖项替换为 spring-boot-starter-web 以获得正确的版本。

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

更正您的应用程序的类路径，使其包含 类 org.springframework.boot.autoconfigure.http.HttpMessageConverter 的兼容版本

Correct classpath of your application so it contains compatible versions of classes org.springframework.boot.autoconfigure.http.HttpMessageConverter

java

spring

spring-boot

更正您的应用程序的类路径，使其包含类 org.springframework.boot.autoconfigure.http.HttpMessageConverter 的兼容版本