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50 lines
2.6 KiB
Java
50 lines
2.6 KiB
Java
package com.glxp.api.config;
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import com.baomidou.mybatisplus.annotation.IdType;
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import com.baomidou.mybatisplus.core.injector.AbstractMethod;
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import com.baomidou.mybatisplus.core.metadata.TableInfo;
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import com.baomidou.mybatisplus.core.metadata.TableInfoHelper;
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import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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import com.baomidou.mybatisplus.core.toolkit.sql.SqlScriptUtils;
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import org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator;
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import org.apache.ibatis.executor.keygen.KeyGenerator;
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import org.apache.ibatis.executor.keygen.NoKeyGenerator;
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import org.apache.ibatis.mapping.MappedStatement;
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import org.apache.ibatis.mapping.SqlSource;
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/**
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* 插入一条数据（选择字段插入）
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* INSERT IGNORE 表示，如果中已经存在相同的记录，则忽略当前新数据；
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*/
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public class InsertIgnore extends AbstractMethod {
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@Override
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public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
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KeyGenerator keyGenerator = new NoKeyGenerator();
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CustomerSqlMethod sqlMethod = CustomerSqlMethod.INSERT_IGNORE_ONE;
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String columnScript = SqlScriptUtils.convertTrim(tableInfo.getAllInsertSqlColumnMaybeIf(null),
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LEFT_BRACKET, RIGHT_BRACKET, null, COMMA);
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String valuesScript = SqlScriptUtils.convertTrim(tableInfo.getAllInsertSqlPropertyMaybeIf(null),
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LEFT_BRACKET, RIGHT_BRACKET, null, COMMA);
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String keyProperty = null;
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String keyColumn = null;
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// 表包含主键处理逻辑,如果不包含主键当普通字段处理
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if (StringUtils.isNotBlank(tableInfo.getKeyProperty())) {
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if (tableInfo.getIdType() == IdType.AUTO) {
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/* 自增主键 */
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keyGenerator = new Jdbc3KeyGenerator();
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keyProperty = tableInfo.getKeyProperty();
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keyColumn = tableInfo.getKeyColumn();
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} else {
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if (null != tableInfo.getKeySequence()) {
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keyGenerator = TableInfoHelper.genKeyGenerator(sqlMethod.getMethod(), tableInfo, builderAssistant);
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keyProperty = tableInfo.getKeyProperty();
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keyColumn = tableInfo.getKeyColumn();
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}
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}
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}
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String sql = String.format(sqlMethod.getSql(), tableInfo.getTableName(), columnScript, valuesScript);
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SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
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return this.addInsertMappedStatement(mapperClass, modelClass, sqlMethod.getMethod(), sqlSource, keyGenerator, keyProperty, keyColumn);
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}
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}
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