springboot1.5.9升级springboot2.0.5

占坑

springboot1.5.9升级springboot2.0.5

此升级只适应于参考(本公司暂时正常运行)

原文链接

官网翻译

spring-cloud 组件

• springboot 版本

    <version>2.0.5.RELEASE</version>
  

• springcloud 版本

    <version>Finchley.RELEASE</version>
  

• eureka-server 替换

    <dependency>
    	<groupId>org.springframework.cloud</groupId>
    	<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    </dependency>
  

• eureka-client 替换 2.0.X guava scope 为runtime 项目引用不到

    <dependency>
    	<groupId>org.springframework.cloud</groupId>
    	<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
    	<groupId>com.google.guava</groupId>
    	<artifactId>guava</artifactId>
    </dependency>
  

• feign 替换

NOTIVE

	这个包下注解及类路径更换需要批量替换路径问题
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-openfeign</artifactId>
	</dependency>

版本替换

<properties>
	<xstream.version>1.4.10</xstream.version>
	<validation-api.version>2.0.1.Final</validation-api.version>
	<stream-kafka.version>2.0.3.RELEASE</stream-kafka.version>
	<wxcep-cache.version>2.0.0-SNAPSHOT</wxcep-cache.version>
</properties>

spring-cloud-stream-kafka

官网

配置文件

#security
spring:
  # 安全认证的配置
  security:
    basic:
      enabled: true
    user:
      name: username  # 用户名
      password: passwd   # 用户密码
	  
#server
server:
  servlet:
    context-path: /spring-web

#redis
spring:
	redis: 
		host: 192.168.6.110
		port: 6385
		password: root
		jedis:
			pool.max-idle: 8 
			pool.min-idle: 1
			pool.max-active: 8
			pool.max-wait: -1

@ConfigurationProperties

	不支持下划线

@ConfigurationProperties(prefix = "spring.dsslave", ignoreInvalidFields = true, ignoreUnknownFields= false)
public class SlaveDruidProperties{}

排除pom

启动后退出无日志日志输出

<exclusions>
	<exclusion>
		<artifactId>commons-logging</artifactId>
		<groupId>commons-logging</groupId>
	</exclusion>
</exclusions>

 低版本method不存在导致启动task报错

<exclusions>
	<exclusion>
		<artifactId>netty-all</artifactId>
		<groupId>io.netty</groupId>
	</exclusion>
</exclusions>

spring-data-redis

{
	@Bean
	@ConditionalOnMissingBean
	public CacheManager cacheManager(RedisConnectionFactory factory) {
		RedisCacheManager cacheManager = RedisCacheManager.create(factory);

		log.info("cacheManager initialization successful......");

		return cacheManager;
	}
 }

Security

eureka server中配置了security注意事项 否则出现eureka client注册不上服务

@EnableWebSecurity
static class WebSecurityConfig extends WebSecurityConfigurerAdapter {
		@Override
		protected void configure(HttpSecurity http) throws Exception {
		http.csrf().disable();
		super.configure(http);
	}
}

WebMvcConfigurerAdapter

WebMvcConfigurerAdapter废弃 转换器替换去除MappingJackson2HttpMessageConverter MappingJackson2HttpMessageConverter 不支持@RequestBody JSON object 转换为String springboot2.0.X加载转换器顺序问题(优先加载了默认转换器)springboot1.5.9把自定义转换器加载在首位

    /**
     * MVC转换器
     */
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        // 去掉jackson，添加fastjson
        List<HttpMessageConverter<?>> filterconverters = converters.stream().filter(covert -> !(covert instanceof MappingJackson2HttpMessageConverter)).collect(Collectors.toList());
        filterconverters.add(createFastJsonConverter());

        converters.clear();
        converters.addAll(filterconverters);
    }

Exception

不返回exception 导致异常解析失败
(不可使用@ControllerAdvice与@ExceptionHandler处理异常,但@ControllerAdvice与@ExceptionHandler 只能处理controller中的异常)

ErrorMvcAutoConfiguration 

BasicErrorController
org.springframework.boot.autoconfigure.web.BasicErrorController#error


org.springframework.web.servlet.HandlerExceptionResolver

自定义异常

@Bean
 public ErrorAttributes errorAttributes(){
        return new CustomErrorAttributes();
 }
 
 public class CustomErrorAttributes extends DefaultErrorAttributes {
 
	public CustomErrorAttributes() {
		super();
	}

	@Override
	public Map<String, Object> getErrorAttributes(WebRequest webRequest, boolean includeStackTrace) {

		Map<String, Object> errorAttributes = super.getErrorAttributes(webRequest, includeStackTrace);

		Throwable error = getError(webRequest);

		if(null == error){
			return errorAttributes;
		}

		errorAttributes.put("exception", error.getClass().getName());
		return errorAttributes;
	}
}

1.5.9

返回exception

org.springframework.boot.web.servlet.error.DefaultErrorAttributes#getErrorAttributes

tomcat 版本支持

外部容器启动

springboot2.0最低支持8.5
tomcat 8.0.36 不兼容
org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory#addDefaultServlet
context.addServletMappingDecoded("/", "default");

tomcat 8.0.36 org.apache.catalina.Context java.lang.NoSuchMethodError

来源：oschina

链接：https://my.oschina.net/u/3876288/blog/4307863