diff --git a/src/org/redkale/source/FilterJoinColumn.java b/src/org/redkale/source/FilterJoinColumn.java
index 7ef2f4c89..43b12e563 100644
--- a/src/org/redkale/source/FilterJoinColumn.java
+++ b/src/org/redkale/source/FilterJoinColumn.java
@@ -34,6 +34,10 @@ public @interface FilterJoinColumn {
* 多个关联字段, 默认使用join表(b)的主键, join表与被join表(a)的字段必须一样
* 例如: SELECT a.* FROM user a INNER JOIN record b ON a.userid = b.userid AND a.usertype = b.usertype
* 那么注解为: @FilterJoinColumn(table = Record.class, columns = {"userid", "usertype"})
+ *
+ * columns中的字段名如果不一致,可以将两个字段名用短横-连接成一个字段名
+ * 例如: SELECT a.* FROM user a INNER JOIN record b ON a.userid = b.buyerid AND a.usertype = b.usertype
+ * 那么注解为: @FilterJoinColumn(table = Record.class, columns = {"userid-buyerid", "usertype"})
*
* @return 关联字段
*/
diff --git a/src/org/redkale/source/FilterJoinNode.java b/src/org/redkale/source/FilterJoinNode.java
index 826a57ee2..eb2468f57 100644
--- a/src/org/redkale/source/FilterJoinNode.java
+++ b/src/org/redkale/source/FilterJoinNode.java
@@ -128,14 +128,23 @@ public class FilterJoinNode extends FilterNode {
if (filter == null && !more.get()) return rs;
if (filter != null) {
final Predicate inner = filter;
+ final String[][] localJoinColumns = new String[joinColumns.length][2];
+ for (int i = 0; i < joinColumns.length; i++) {
+ int pos = joinColumns[i].indexOf('-');
+ if (pos > 0) {
+ localJoinColumns[i] = new String[]{joinColumns[i].substring(0, pos), joinColumns[i].substring(pos + 1)};
+ } else {
+ localJoinColumns[i] = new String[]{joinColumns[i], joinColumns[i]};
+ }
+ }
rs = new Predicate() {
@Override
public boolean test(final T t) {
Predicate joinPredicate = null;
- for (String joinColumn : joinColumns) {
- final Serializable key = cache.getAttribute(joinColumn).get(t);
- final Attribute joinAttr = joinCache.getAttribute(joinColumn);
+ for (String[] localJoinColumn : localJoinColumns) {
+ final Serializable key = cache.getAttribute(localJoinColumn[0]).get(t);
+ final Attribute joinAttr = joinCache.getAttribute(localJoinColumn[1]);
Predicate p = (E e) -> key.equals(joinAttr.get(e));
joinPredicate = joinPredicate == null ? p : joinPredicate.and(p);
}
@@ -145,9 +154,9 @@ public class FilterJoinNode extends FilterNode {
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
- sb.append(" #-- ON ").append(joinColumns[0]).append("=").append(joinClass == null ? "null" : joinClass.getSimpleName()).append(".").append(joinColumns[0]);
- for (int i = 1; i < joinColumns.length; i++) {
- sb.append(" AND ").append(joinColumns[i]).append("=").append(joinClass == null ? "null" : joinClass.getSimpleName()).append(".").append(joinColumns[i]);
+ sb.append(" #-- ON ").append(localJoinColumns[0][0]).append("=").append(joinClass == null ? "null" : joinClass.getSimpleName()).append(".").append(localJoinColumns[0][1]);
+ for (int i = 1; i < localJoinColumns.length; i++) {
+ sb.append(" AND ").append(localJoinColumns[i][0]).append("=").append(joinClass == null ? "null" : joinClass.getSimpleName()).append(".").append(localJoinColumns[i][1]);
}
sb.append(" --# ").append(inner.toString());
return sb.toString();
@@ -277,10 +286,12 @@ public class FilterJoinNode extends FilterNode {
if (node.joinClass == null) return null;
StringBuilder sb = new StringBuilder();
String[] joinColumns = node.joinColumns;
+ int pos = joinColumns[0].indexOf('-');
sb.append(" INNER JOIN ").append(node.joinEntity.getTable(node)).append(" ").append(joinTabalis.get(node.joinClass))
- .append(" ON ").append(info.getSQLColumn("a", joinColumns[0])).append(" = ").append(node.joinEntity.getSQLColumn(joinTabalis.get(node.joinClass), joinColumns[0]));
+ .append(" ON ").append(info.getSQLColumn("a", pos > 0 ? joinColumns[0].substring(0, pos) : joinColumns[0])).append(" = ").append(node.joinEntity.getSQLColumn(joinTabalis.get(node.joinClass), pos > 0 ? joinColumns[0].substring(pos + 1) : joinColumns[0]));
for (int i = 1; i < joinColumns.length; i++) {
- sb.append(" AND ").append(info.getSQLColumn("a", joinColumns[i])).append(" = ").append(node.joinEntity.getSQLColumn(joinTabalis.get(node.joinClass), joinColumns[i]));
+ pos = joinColumns[i].indexOf('-');
+ sb.append(" AND ").append(info.getSQLColumn("a", pos > 0 ? joinColumns[i].substring(0, pos) : joinColumns[i])).append(" = ").append(node.joinEntity.getSQLColumn(joinTabalis.get(node.joinClass), pos > 0 ? joinColumns[i].substring(pos + 1) : joinColumns[i]));
}
return sb;
}