From 2e712036d9700ce1a01681fbe6a415f493190775 Mon Sep 17 00:00:00 2001 From: admin <570810310@qq.com> Date: Mon, 1 Feb 2021 17:52:19 +0800 Subject: [PATCH] update --- .../interceptor/MyResultInterceptor.java | 1 + .../interceptor/MybatisParameterHandler.java | 205 ------------------ 2 files changed, 1 insertion(+), 205 deletions(-) delete mode 100644 src/main/java/com/github/mybatisplus/interceptor/MybatisParameterHandler.java diff --git a/src/main/java/com/github/mybatisplus/interceptor/MyResultInterceptor.java b/src/main/java/com/github/mybatisplus/interceptor/MyResultInterceptor.java index f847f5d..b910368 100644 --- a/src/main/java/com/github/mybatisplus/interceptor/MyResultInterceptor.java +++ b/src/main/java/com/github/mybatisplus/interceptor/MyResultInterceptor.java @@ -1,5 +1,6 @@ package com.github.mybatisplus.interceptor; +import com.baomidou.mybatisplus.core.MybatisParameterHandler; import com.baomidou.mybatisplus.core.toolkit.ClassUtils; import com.baomidou.mybatisplus.core.toolkit.StringUtils; import com.github.mybatisplus.toolkit.Constant; diff --git a/src/main/java/com/github/mybatisplus/interceptor/MybatisParameterHandler.java b/src/main/java/com/github/mybatisplus/interceptor/MybatisParameterHandler.java deleted file mode 100644 index 19d1b5c..0000000 --- a/src/main/java/com/github/mybatisplus/interceptor/MybatisParameterHandler.java +++ /dev/null @@ -1,205 +0,0 @@ -package com.github.mybatisplus.interceptor; - -import com.baomidou.mybatisplus.annotation.IdType; -import com.baomidou.mybatisplus.core.incrementer.IdentifierGenerator; -import com.baomidou.mybatisplus.core.metadata.TableInfo; -import com.baomidou.mybatisplus.core.metadata.TableInfoHelper; -import com.baomidou.mybatisplus.core.toolkit.Constants; -import com.baomidou.mybatisplus.core.toolkit.GlobalConfigUtils; -import com.baomidou.mybatisplus.core.toolkit.ReflectionKit; -import com.baomidou.mybatisplus.core.toolkit.StringUtils; -import org.apache.ibatis.executor.ErrorContext; -import org.apache.ibatis.executor.parameter.ParameterHandler; -import org.apache.ibatis.mapping.*; -import org.apache.ibatis.reflection.MetaObject; -import org.apache.ibatis.session.Configuration; -import org.apache.ibatis.type.JdbcType; -import org.apache.ibatis.type.TypeException; -import org.apache.ibatis.type.TypeHandler; -import org.apache.ibatis.type.TypeHandlerRegistry; - -import java.sql.PreparedStatement; -import java.sql.SQLException; -import java.util.Arrays; -import java.util.Collection; -import java.util.List; -import java.util.Map; - -/** - * copy {@link com.baomidou.mybatisplus.core.MybatisParameterHandler} - *

- * 兼容3.4以下 - */ -public class MybatisParameterHandler implements ParameterHandler { - - private final TypeHandlerRegistry typeHandlerRegistry; - private final MappedStatement mappedStatement; - private final Object parameterObject; - private final BoundSql boundSql; - private final Configuration configuration; - private final SqlCommandType sqlCommandType; - - public MybatisParameterHandler(MappedStatement mappedStatement, Object parameter, BoundSql boundSql) { - this.typeHandlerRegistry = mappedStatement.getConfiguration().getTypeHandlerRegistry(); - this.mappedStatement = mappedStatement; - this.boundSql = boundSql; - this.configuration = mappedStatement.getConfiguration(); - this.sqlCommandType = mappedStatement.getSqlCommandType(); - this.parameterObject = processParameter(parameter); - } - - public Object processParameter(Object parameter) { - /* 只处理插入或更新操作 */ - if (parameter != null - && (SqlCommandType.INSERT == this.sqlCommandType || SqlCommandType.UPDATE == this.sqlCommandType)) { - //检查 parameterObject - if (ReflectionKit.isPrimitiveOrWrapper(parameter.getClass()) - || parameter.getClass() == String.class) { - return parameter; - } - Collection parameters = getParameters(parameter); - if (null != parameters) { - // 感觉这里可以稍微优化一下，理论上都是同一个. - parameters.forEach(this::process); - } else { - process(parameter); - } - } - return parameter; - } - - @Override - public Object getParameterObject() { - return this.parameterObject; - } - - private void process(Object parameter) { - if (parameter != null) { - TableInfo tableInfo = null; - Object entity = parameter; - if (parameter instanceof Map) { - Map map = (Map) parameter; - if (map.containsKey(Constants.ENTITY)) { - Object et = map.get(Constants.ENTITY); - if (et != null) { - entity = et; - tableInfo = TableInfoHelper.getTableInfo(entity.getClass()); - } - } - } else { - tableInfo = TableInfoHelper.getTableInfo(parameter.getClass()); - } - if (tableInfo != null) { - //到这里就应该转换到实体参数对象了,因为填充和ID处理都是争对实体对象处理的,不用传递原参数对象下去. - MetaObject metaObject = this.configuration.newMetaObject(entity); - if (SqlCommandType.INSERT == this.sqlCommandType) { - populateKeys(tableInfo, metaObject, entity); - insertFill(metaObject, tableInfo); - } else { - updateFill(metaObject, tableInfo); - } - } - } - } - - - protected void populateKeys(TableInfo tableInfo, MetaObject metaObject, Object entity) { - final IdType idType = tableInfo.getIdType(); - final String keyProperty = tableInfo.getKeyProperty(); - if (StringUtils.isNotBlank(keyProperty) && null != idType && idType.getKey() >= 3) { - final IdentifierGenerator identifierGenerator = GlobalConfigUtils.getGlobalConfig(this.configuration).getIdentifierGenerator(); - Object idValue = metaObject.getValue(keyProperty); - if (StringUtils.checkValNull(idValue)) { - if (idType.getKey() == IdType.ASSIGN_ID.getKey()) { - if (Number.class.isAssignableFrom(tableInfo.getKeyType())) { - metaObject.setValue(keyProperty, identifierGenerator.nextId(entity)); - } else { - metaObject.setValue(keyProperty, identifierGenerator.nextId(entity).toString()); - } - } else if (idType.getKey() == IdType.ASSIGN_UUID.getKey()) { - metaObject.setValue(keyProperty, identifierGenerator.nextUUID(entity)); - } - } - } - } - - - protected void insertFill(MetaObject metaObject, TableInfo tableInfo) { - GlobalConfigUtils.getMetaObjectHandler(this.configuration).ifPresent(metaObjectHandler -> { - if (metaObjectHandler.openInsertFill() && tableInfo.isWithInsertFill()) { - metaObjectHandler.insertFill(metaObject); - } - }); - } - - protected void updateFill(MetaObject metaObject, TableInfo tableInfo) { - GlobalConfigUtils.getMetaObjectHandler(this.configuration).ifPresent(metaObjectHandler -> { - if (metaObjectHandler.openUpdateFill() && tableInfo.isWithUpdateFill()) { - metaObjectHandler.updateFill(metaObject); - } - }); - } - - /** - * 处理正常批量插入逻辑 - *

- * org.apache.ibatis.session.defaults.DefaultSqlSession$StrictMap 该类方法 - * wrapCollection 实现 StrictMap 封装逻辑 - *

- * - * @return 集合参数 - */ - @SuppressWarnings({"rawtypes", "unchecked"}) - protected Collection getParameters(Object parameterObject) { - Collection parameters = null; - if (parameterObject instanceof Collection) { - parameters = (Collection) parameterObject; - } else if (parameterObject instanceof Map) { - Map parameterMap = (Map) parameterObject; - if (parameterMap.containsKey("collection")) { - parameters = (Collection) parameterMap.get("collection"); - } else if (parameterMap.containsKey("list")) { - parameters = (List) parameterMap.get("list"); - } else if (parameterMap.containsKey("array")) { - parameters = Arrays.asList((Object[]) parameterMap.get("array")); - } - } - return parameters; - } - - @Override - @SuppressWarnings("unchecked") - public void setParameters(PreparedStatement ps) { - ErrorContext.instance().activity("setting parameters").object(this.mappedStatement.getParameterMap().getId()); - List parameterMappings = this.boundSql.getParameterMappings(); - if (parameterMappings != null) { - for (int i = 0; i < parameterMappings.size(); i++) { - ParameterMapping parameterMapping = parameterMappings.get(i); - if (parameterMapping.getMode() != ParameterMode.OUT) { - Object value; - String propertyName = parameterMapping.getProperty(); - if (this.boundSql.hasAdditionalParameter(propertyName)) { // issue #448 ask first for additional params - value = this.boundSql.getAdditionalParameter(propertyName); - } else if (this.parameterObject == null) { - value = null; - } else if (this.typeHandlerRegistry.hasTypeHandler(this.parameterObject.getClass())) { - value = parameterObject; - } else { - MetaObject metaObject = this.configuration.newMetaObject(this.parameterObject); - value = metaObject.getValue(propertyName); - } - TypeHandler typeHandler = parameterMapping.getTypeHandler(); - JdbcType jdbcType = parameterMapping.getJdbcType(); - if (value == null && jdbcType == null) { - jdbcType = this.configuration.getJdbcTypeForNull(); - } - try { - typeHandler.setParameter(ps, i + 1, value, jdbcType); - } catch (TypeException | SQLException e) { - throw new TypeException("Could not set parameters for mapping: " + parameterMapping + ". Cause: " + e, e); - } - } - } - } - } -}