Mybatis 返回resultType=“map“映射下划线转驼峰示例
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| <select id="getMyList" parameterType="map" resultType="map">
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1、增加如下配置类:
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| @Configuration public class MybatisConfig {
@Bean public ConfigurationCustomizer configurationCustomizer() { return configuration -> configuration.setObjectWrapperFactory(new MapWrapperFactory()); } static class MapWrapperFactory implements ObjectWrapperFactory { @Override public boolean hasWrapperFor(Object object) { return object != null && object instanceof Map; } @Override public ObjectWrapper getWrapperFor(MetaObject metaObject, Object object) { return new MyMapWrapper(metaObject, (Map) object); } } static class MyMapWrapper extends MapWrapper { MyMapWrapper(MetaObject metaObject, Map<String, Object> map) { super(metaObject, map); } @Override public String findProperty(String name, boolean useCamelCaseMapping) { if (useCamelCaseMapping && ((name.charAt(0) >= 'A' && name.charAt(0) <= 'Z') || name.contains("_"))) { return underlineToCamelhump(name); } return name; }
private String underlineToCamelhump(String inputString) { StringBuilder sb = new StringBuilder(); boolean nextUpperCase = false; for (int i = 0; i < inputString.length(); i++) { char c = inputString.charAt(i); if (c == '_') { if (sb.length() > 0) { nextUpperCase = true; } } else { if (nextUpperCase) { sb.append(Character.toUpperCase(c)); nextUpperCase = false; } else { sb.append(Character.toLowerCase(c)); } } } return sb.toString(); } } }
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2、application.yml文件增加如下配置:
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| mybatis: configuration:
map-underscore-to-camel-case: true
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