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Nicky edited this page Dec 2, 2018 · 10 revisions

【mybatis Exception】

Invalid bound statement (not found)： ①Mapepr.xml文件中文nameapce没有和mapper接口发生映射 ②有可能是在IDEA编辑器运行的项目，需要project structure设置mybatis的xml文件夹为resource

获取后台timestamp类型数据，页面得到一串unix long类型数据，解决方案是用fastjson的@JSONField注解可以解决

 @JSONField(format ="yyyy-MM-dd HH:mm:ss")
 private Date createTime;

【SpringBoot扫描问题】 mybatis默认typeAliasesPackage是不支持正则扫描package的，项目扫描不到用通配符表示的包路径com.muses.taoshop.*.entity， 解决方案是typeAliasesPackage正则扫描package中的bean 解决方案来自csdn博客链接

 public static String setTypeAliasesPackage(String typeAliasesPackage) {
        ResourcePatternResolver resolver = (ResourcePatternResolver) new PathMatchingResourcePatternResolver();
        MetadataReaderFactory metadataReaderFactory = new CachingMetadataReaderFactory(
                resolver);
        typeAliasesPackage = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX
                + ClassUtils.convertClassNameToResourcePath(typeAliasesPackage)
                + "/" + DEFAULT_RESOURCE_PATTERN;
        try {
            List<String> result = new ArrayList<String>();
            Resource[] resources = resolver.getResources(typeAliasesPackage);
            if (resources != null && resources.length > 0) {
                MetadataReader metadataReader = null;
                for (Resource resource : resources) {
                    if (resource.isReadable()) {
                        metadataReader = metadataReaderFactory
                                .getMetadataReader(resource);
                        try {
                            // System.out.println(Class.forName(metadataReader.getClassMetadata().getClassName()).getPackage().getName());
                            result.add(Class
                                    .forName(
                                            metadataReader.getClassMetadata()
                                                    .getClassName())
                                    .getPackage().getName());
                        } catch (ClassNotFoundException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
            if (result.size() > 0) {
                HashSet<String> h = new HashSet<String>(result);
                result.clear();
                result.addAll(h);
                typeAliasesPackage=String.join(",",(String[]) result.toArray(new String[0]));
                System.out.println(typeAliasesPackage);
            } else {
                throw new RuntimeException(
                        "mybatis typeAliasesPackage 路径扫描错误,参数typeAliasesPackage:"
                                + typeAliasesPackage + "未找到任何包");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return typeAliasesPackage;
    }

【Themeleaf】 idea thymeleaf页面变量报错解决 链接

【Dubbo搭建】 Detected both log4j-over-slf4j.jar AND bound slf4j-log4j12.jar on the class path, preempting StackOverflowError

<dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>${zookeeper.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

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