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GeezerVison is showing github.com — APIJSON/APIJSONORM/src/main/java/apijson/SQL.java at master · APIJSON/APIJSON Expand file tree/ Copy pathSQL.javaMore file actions executable file ·411 lines (376 loc) · 10.4 KB / Copy pathSQL.javaFile metadata and controlsexecutable file ·411 lines (376 loc) · 10.4 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 /*Copyright (C) 2026 the APIJSON group. All rights reserved. This source code is licensed under the Apache License Version 2.0.*/ package apijson; /**SQL语句，函数名尽量和JDK中相同或类似功能的函数的名称一致 * @author Lemon */ public class SQL { public static final String JOIN = " JOIN "; public static final String ON = " ON "; public static final String OR = " OR "; public static final String AND = " AND "; public static final String NOT = " NOT "; public static final String AS = " AS "; public static final String IS = " IS "; public static final String NULL = " NULL "; public static final String IS_NOT = " IS NOT "; public static final String IS_NULL = " IS NULL "; public static final String IS_NOT_NULL = " IS NOT NULL "; //括号必须紧跟函数名！ count (...) 报错！ public static final String COUNT = "count"; public static final String SUM = "sum"; public static final String MAX = "max"; public static final String MIN = "min"; public static final String AVG = "avg"; /** * isNull = true * @return {@link #isNull(boolean)} */ public static String isNull() { return isNull(true); } /** * @param isNull * @return {@link #IS} + (isNull ? "" : {@link #NOT}) + {@link #NULL}; */ public static String isNull(boolean isNull) { return IS + (isNull ? "" : NOT) + NULL; } /** * isNull = true * @param s * @return {@link #isNull(String, boolean)} */ public static String isNull(String s) { return isNull(s, true); } /** * @param s * @param isNull * @return s + {@link #isNull(boolean)} */ public static String isNull(String s, boolean isNull) { return s + isNull(isNull); } /** * isEmpty = true * @param s * @return {@link #isEmpty(String, boolean)} */ public static String isEmpty(String s) { return isEmpty(s, true); } /** * trim = false * @param s * @param isEmpty * @return {@link #isEmpty(String, boolean, boolean)} */ public static String isEmpty(String s, boolean isEmpty) { return isEmpty(s, isEmpty, false); } /** * nullable = true * @param s * @param isEmpty <=0 * @param trim s = trim(s); * @return {@link #isEmpty(String, boolean, boolean, boolean)} */ public static String isEmpty(String s, boolean isEmpty, boolean trim) { return isEmpty(s, isEmpty, trim, true); } /** * @param s * @param isEmpty <=0 * @param trim s = trim(s); * @param nullable isNull(s, true) + {@link #OR} + * @return {@link #lengthCompare(String, String)} */ public static String isEmpty(String s, boolean isEmpty, boolean trim, boolean nullable) { if (trim) { s = trim(s); } return (nullable ? isNull(s, true) + OR : "") + lengthCompare(s, (isEmpty ? "<=" : ">") + "0"); } /** * @param s 因为POWER(x,y)等函数含有不只一个key，所以需要客户端添加进去，服务端检测到条件中有'('和')'时就不转换，直接当SQL语句查询 * @return {@link #length(String)} + compare */ public static String lengthCompare(String s, String compare) { return length(s) + compare; } /** * @param s 因为POWER(x,y)等函数含有不只一个key，所以需要客户端添加进去，服务端检测到条件中有'('和')'时就不转换，直接当SQL语句查询 * @return "length(" + s + ")" */ public static String length(String s) { return "length(" + s + ")"; } /** * @param s 因为POWER(x,y)等函数含有不只一个key，所以需要客户端添加进去，服务端检测到条件中有'('和')'时就不转换，直接当SQL语句查询 * @return "json_length(" + s + ")" */ public static String json_length(String s) { return "json_length(" + s + ")"; } /** * @param s 因为POWER(x,y)等函数含有不只一个key，所以需要客户端添加进去，服务端检测到条件中有'('和')'时就不转换，直接当SQL语句查询 * @return "char_length(" + s + ")" */ public static String charLength(String s) { return "char_length(" + s + ")"; } /** * @param s * @return "trim(" + s + ")" */ public static String trim(String s) { return "trim(" + s + ")"; } /** * @param s * @return "ltrim(" + s + ")" */ public static String trimLeft(String s) { return "ltrim(" + s + ")"; } /** * @param s * @return "rtrim(" + s + ")" */ public static String trimRight(String s) { return "rtrim(" + s + ")"; } /** * @param s * @param n * @return "left(" + s + "," + n + ")" */ public static String left(String s, int n) { return "left(" + s + "," + n + ")"; } /** * @param s * @param n * @return "right(" + s + "," + n + ")" */ public static String right(String s, int n) { return "right(" + s + "," + n + ")"; } /** * @param s * @param start * @param end * @return "substring(" + s + "," + start + "," + (end-start) + ")" */ public static String subString(String s, int start, int end) { return "substring(" + s + "," + start + "," + (end-start) + ")"; } /** * @param s * @param c * @return "instr(" + s + ", " + c + ")" */ public static String indexOf(String s, String c) { return "instr(" + s + ", " + c + ")"; } /** * @param s * @param c1 * @param c2 * @return "replace(" + s + ", " + c1 + ", " + c2 + ")" */ public static String replace(String s, String c1, String c2) { return "replace(" + s + ", " + c1 + ", " + c2 + ")"; } /** * @param s1 * @param s2 * @return "concat(" + s1 + ", " + s2 + ")" */ public static String concat(String s1, String s2) { return "concat(" + s1 + ", " + s2 + ")"; } /** * @param s1 * @param s2 * @return "strcmp(" + s1 + ", " + s2 + ")" */ public static String equals(String s1, String s2) { return "strcmp(" + s1 + ", " + s2 + ")"; } /** * @param s * @return "upper(" + s + ")" */ public static String toUpperCase(String s) { return "upper(" + s + ")"; } /** * @param s * @return "lower(" + s + ")" */ public static String toLowerCase(String s) { return "lower(" + s + ")"; } //column and function<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< /**字段 * @param column * @return column.isEmpty() ? "*" : column; */ public static String column(String column) { column = StringUtil.trim(column); return column.isEmpty() ? "*" : column; } /**有别名的字段 * @param column * @return {@link #count(String)} + {@link #AS}; */ public static String columnAs(String column) { return count(column) + AS; } /**函数 * @param column if (StringUtil.isEmpty(column, true) || column.contains(",")) -> column = null; * @return " " + fun + "(" + {@link #column(String)} + ") "; */ public static String function(String fun, String column) { // 支持 fun(col1,col2..) // if (StringUtil.isEmpty(column, true) || column.contains(",")) { // column = null; //解决 count(id,name) 这种多个字段导致的SQL异常 // } return " " + fun + "(" + column(column) + ") "; } /**有别名的函数 * @param column * @return {@link #function(String, String)} + {@link #AS} + fun; */ public static String functionAs(String fun, String column) { return function(fun, column) + AS + fun + " "; } /**计数 * column = null * @return {@link #count(String)} */ public static String count() { return count(null); } /**计数 * fun = {@link #COUNT} * @param column * @return {@link #functionAs(String, String)} */ public static String count(String column) { return functionAs(COUNT, column); } /**求和 * fun = {@link #SUM} * @param column * @return {@link #functionAs(String, String)} */ public static String sum(String column) { return functionAs(SUM, column); } /**最大值 * fun = {@link #MAX} * @param column * @return {@link #functionAs(String, String)} */ public static String max(String column) { return functionAs(MAX, column); } /**最小值 * fun = {@link #MIN} * @param column * @return {@link #functionAs(String, String)} */ public static String min(String column) { return functionAs(MIN, column); } /**平均值 * fun = {@link #AVG} * @param column * @return {@link #functionAs(String, String)} */ public static String avg(String column) { return functionAs(AVG, column); } //column and function>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //search<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< public static final int SEARCH_TYPE_CONTAIN_FULL = 0; public static final int SEARCH_TYPE_CONTAIN_ORDER = 1; public static final int SEARCH_TYPE_CONTAIN_SINGLE = 2; public static final int SEARCH_TYPE_CONTAIN_ANY = 3; public static final int SEARCH_TYPE_START = 4; public static final int SEARCH_TYPE_END = 5; public static final int SEARCH_TYPE_START_SINGLE = 6; public static final int SEARCH_TYPE_END_SINGLE = 7; public static final int SEARCH_TYPE_PART_MATCH = 8; /**获取搜索值 * @param s * @return */ public static String search(String s) { return search(s, SEARCH_TYPE_CONTAIN_FULL); } /**获取搜索值 * @param s * @param type * @return */ public static String search(String s, int type) { return search(s, type, true); } /**获取搜索值 * @param s * @param type * @param ignoreCase * @return default SEARCH_TYPE_CONTAIN_FULL */ public static String search(String s, int type, boolean ignoreCase) { if (s == null) { return null; } switch (type) { case SEARCH_TYPE_CONTAIN_SINGLE: return "_" + s + "_"; case SEARCH_TYPE_CONTAIN_ORDER: char[] cs = s.toCharArray(); if (cs == null) { return null; } String value = "%"; for (int i = 0; i < cs.length; i++) { value += cs[i] + "%"; } return value; case SEARCH_TYPE_START: return s + "%"; case SEARCH_TYPE_END: return "%" + s; case SEARCH_TYPE_START_SINGLE: return s + "_"; case SEARCH_TYPE_END_SINGLE: return "_" + s; case SEARCH_TYPE_CONTAIN_ANY: case SEARCH_TYPE_PART_MATCH: cs = s.toCharArray(); if (cs == null) { return null; } value = ""; for (int i = 0; i < cs.length; i++) { value += search("" + cs[i], SEARCH_TYPE_CONTAIN_FULL, ignoreCase); } return value; default://SEARCH_TYPE_CONTAIN_FULL return "%" + s + "%"; } } //search>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> public static boolean isBooleanOrNumber(String type) { type = StringUtil.toUpperCase(type, true); return type.isEmpty() || (type.endsWith("INT") && type.endsWith("POINT") == false) || type.endsWith("BOOLEAN") || type.endsWith("ENUM") || type.endsWith("FLOAT") || type.endsWith("DOUBLE") || type.endsWith("DECIMAL"); } } |
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