JAVA通過Map拼接SQL語句(Insert Update語句)

package com.lynch.erp.core.util; import java.util.Map; import org.apache.commons.collections.MapUtils; import org.apache.commons.lang3.StringUtils; public class SQLUtils { /** * 通過Map拼接Insert SQL語句 * * @param tableName * @param dataMap * @return
     */
    public static String genSqlInsert(String tableName, Map<String, String> dataMap) { if(MapUtils.isEmpty(dataMap)) { return null; } //生成INSERT INTO table(field1,field2) 部分
        StringBuffer sbField = new StringBuffer(); //生成VALUES('value1','value2') 部分
        StringBuffer sbValue = new StringBuffer(); sbField.append("INSERT INTO " + tableName.toLowerCase() + "("); for(Map.Entry<String, String> entry : dataMap.entrySet()){ String mapKey = entry.getKey(); String mapValue = entry.getValue(); if(StringUtils.equals(mapKey, CamelUnderlineUtil.PK)) { continue; } sbField.append("`" + mapKey + "`,"); sbValue.append("'" + mapValue + "',"); } sbField = Util.deleteLastChar(sbField); sbValue = Util.deleteLastChar(sbValue); return sbField.toString() + ") VALUES(" + sbValue.toString() + ")"; } /** * 通過Map拼接Update SQL語句 * * @param tableName * @param operation * @param dataMap * @return
     */
    public static String genSqlUpdate(String tableName, Map<String, String> dataMap) { if(MapUtils.isEmpty(dataMap)) { return null; } String idColumn = dataMap.get(CamelUnderlineUtil.PK); String idValue = dataMap.get(idColumn); StringBuffer sb = new StringBuffer(); sb.append("UPDATE "+ tableName.toLowerCase() +" SET "); for(Map.Entry<String, String> entry : dataMap.entrySet()){ String mapKey = entry.getKey(); String mapValue = entry.getValue(); if(StringUtils.equals(mapKey, CamelUnderlineUtil.PK)) { continue; } if(StringUtils.equals(mapKey.toLowerCase(), idColumn)) { continue; } sb.append("`" + mapKey + "`='" + mapValue + "',"); } sb = Util.deleteLastChar(sb); return  String.format("%s where %s='%s'", sb.toString(), idColumn, idValue); } }